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1
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Plants annual
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(2)
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+
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Plants perennial or biennial
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(3)
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2 (1)
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Leaves lanceolate to oblanceolate, petiole indistinct. Hairs simple and furcate, calyx not stellate in fruit. Plants of high dry areas from 3000-5400 m
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24 Androsace septentrionalis
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+
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Leaves cordate-reniform to suborbicular, distinctly
petioled. Hairs simple. Calyx stellate in fruit. Plants of the lowlands, pot ascending to more than 1800 m
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1 Androsace umbellata
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3 (1)
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Plants perennial. Leaves if as above, smaller (5-15 mm) and margin not pale yellowish-white. Hairs simple
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(4)
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+
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Plants biennial. Leaves spathulate, 15-44 mm long,
cartilaginous, margin ciliolate, pale yellowish-white (at least in the dry state). Hairs occasionally proliferate
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4 Androsace aizoon
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4 (3)
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Leaves with a petiole 2-2½ times the lamina length;
lamina reniform-cordate to orbicular-cordate
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(5)
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+
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Leaves with petiole not exceeding the lamina length. Lamina lanceolate to elliptic-lanceolate or elliptic-ovate, more or less spathulate or suboricular
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(6)
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5 (4)
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Lamina 4.5-12.5 x 7-20 mm, membranous, margin sharply toothed. Pedicel length 6-8 mm, calyx length
3-5 mm
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3 Androsace thomsonii
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+
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Lamina (6-) 12.4-26 x 20-42 mm, margin crenate-dentate. Pedicel length 5-40 mm, calyx length 5-12 mm
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2 Androsace rotundifolia
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6 (4)
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Flowers white to pink, pink-mauve or lilac
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(7)
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+
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Flowers yellow
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7 Androsace flavescens
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7 (6)
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Leaves glabrous to sparse pubescent. Margin setose-ciliate
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(8)
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+
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Leaves pubescent to villous. Margin not strongly setose-ciliate
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(12)
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8 (7)
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Leaves farinose. Scape 14-34 cm long, sometimes less. Seeds 2-8 per capsule
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(9)
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+
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Leaves efarinose. Scape up to 7 cm long. Seeds 1-2 per capsule
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(11)
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9 (8)
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Leaves in loose to dense rosettes, not artilaginous, 15-57 x 3-5.5 mm, margin ciliate or setose-ciliate. Stoloniferous
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(10)
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+
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Leaves densely imbricate, columnar on the caudices, cartilaginous, 2.5-14 x 0.5-4.0 mm, margin ciliate only at the base. Estoloniferous
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23 Androsace harrissii
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10 (9)
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Leaves elliptic, 8-20 mm long. Scape 2.5-11.5 cm long, 3-8-flowered. Bracts 3-9.5 mm long
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19 Androsace himalaica
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+
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Leaves linear-lanceolate, 12-57 mm long. Scape 7.5-28 cm long, 10-22-flowered. Bracts 6-11 mm long
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20 Androsace hazarica
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11 (8)
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Stolons ± stout, 3-6 per node and (1-) 30-80 mm long. Leaves 5-15 x 3-6.5 mm. Scape ± stout, 12-68 mm long, 4-15-flowered
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22 Androsace sempervivoides
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+
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Stolons slender, 1 per node and up to 20 mm long. Leaves 3-8 x 1.5-3 mm. Scape slender, 2-12(-18) mm long, (1-) 2-6-flowered
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21 Androsace mucronifolia
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12 (7)
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Corolla exannulate or with a feebly developed annulus. Seeds from 1-6 per capsule
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(13)
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+
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Corolla annulate, often prominently so. Seeds 1-2 per capsule
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(16)
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13 (12)
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Stolons 1.5-3 mm thick. Leaves dimorphic, rosettes (if present) 5-30 mm broad. Scape stout, (2-) 4.5-22.5 cm long, 15-55 -flowered. Pedicel usually 1½-2 times the length of the bract
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(14)
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+
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Stolons c. 1 mm thick. Leaves isomorphic, in rosettes 7-15 (-17) mm broad. Scape slender, 20-80 mm long, (2-) 4-10-flowered. Pedicel 2½-3 times the length of the bract
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9 Androsace duthieana
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14 (13)
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Stolons naked. Leaves villous, rarely silky-villous
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(15)
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+
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Stolons leafy. Leaves dense appressed silky villous
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8 Androsace lanuginosa
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15 (14)
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Stolons 1.5 mm thick. Leaves ± compactly arranged, inner ones elliptic-lanceolate, 2-6.8 x 0.4-1.2 cm. Scape 4.5-15 cm long, 15-22-flowered
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6 Androsace studiosorum
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+
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Stolons 2-3 mm thick. Leaves ± loosely arranged, inner ones elliptic-cuneate or elliptic-ovate, 2-11.5 x 1.1-3.4 cm. Scape 5.5-22.5 cm long, (7-) 20-55-flowered
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5 Androsace foliosa
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16 (12)
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Leaf surface sparse to densely pubescent-villous, especially on the lower surface; the hairs 0.25-1.9 mm long, 3-5-septate, rarely less
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(17)
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+
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Apex and upper half (lower surface) of leaf strigose, the hairs from 0.18-0.50 mm long, 2-3-septate
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18 Androsace akbaitalensis
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17 (16)
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Plants usually of a loose and dichotomous habit, the leaf caudices exceeding 25 mm in length. Leaves in ± loose to subglobose rosettes at intervals of up to 15 mm apart. Scape usually well developed, 1-12-flowered
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(18)
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+
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Plants very compact, the leaf caudices 11-25 mm long, and appressed close together. Scape obsolete, 1-flowered
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17 Androsace russellii
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18 (17)
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Leaf rosettes loose or if globose then 4-14 mm broad. Leaves not incurved, 3-11 x 1-2.8 mm. Scape (5-) 7-90 mm long, 3-12-flowered
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(19)
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+
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Leaf rosettes 3-6 mm broad, globose. Leaves ± incurved, 2.1-4.5 x 1.1-1.5 mm. Scape up to 8 mm long, 1-2-flowered
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16 Androsace muscoidea
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19 (18)
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Plants robust. Leaves densely appressed villous,
cinerascent green or silky white
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(20)
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+
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Plants of a ± slender habit. Leaves sub-glabrous to pubescent-villous, but not densely so
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(21)
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20 (19)
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Rhizome and seed not as above. Scape 40-95 mm
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10 Androsace robusta
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+
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Rhizome woody, c. 4.5 mm thick. Scape up to 10 mm long. Seed with a prominent hilum scar
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11 Androsace villosissima
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21 (19)
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Leaves in loose rosettes, villous or sparsely so, but not contrasting with the inflorescence
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(22)
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+
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Leaves in subglobose rosettes, sparsely hairy on the upper surface, contrasting with the densely white-villous inflorescence
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15 Androsace staintonii
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22 (21)
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Plants sparsely villous. Indument of white hairs only. Scape 3-9-flowered. Leaves carinate, acute
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(23)
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+
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Plants usually villous. Indument of white to pale
rusty hairs. Scape 1-3-flowered. Leaves faintly carinate, obtusish
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14 Androsace baltistanica
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23 (22)
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Loose slender plants. Tips of leaves, scape and bracts not purplish tinged. Calyx lobes subacute. Corolla lobes entire to wavy
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13 Androsace lowariensis
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+
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Compact plants. Tips of leaves, calyx and bracts
purplish tinged. Calyx lobes obtuse. Corolla lobes retuse
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12 Androsace ojhorensis
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