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(Last Modified On 6/18/2013)
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(Last Modified On 6/18/2013)
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Subspecific
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Sabazia sarmentosa var. papposa (Blake) Canne
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Synonym
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Sabazia triangularis Blake, Proc. Amer. Acad. Arts 22: 615. 1924. TYPE: Panama, Chiriqui, around El Potrero Camp, Chiriqui Volcano, 2800-3000 m, 10-13 March 1911, Pittier 3109 (US, holotype). Sabazia triangularis var; papposa Blake, Ann. Missouri Bot. Gard. 26: 317. 1939. TYPE: Panama, Chiriqui, Loma Larga to summit, Volcan de Chiriqui, ca. 2500-3380 m, 4-6 July 1938, Woodson et al. 1055 (US, holotype; MO, isotype). Sabazia sarmentosa var. triangularis (Blake) Longpre, Publ. Mus. Michigan State Univ., Biol. Ser. 4: 356. 1970.
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Description
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Perennial, procumbent or decumbent herbs, 20-90 cm tall; stems striate, greenish-red, glabrous below to strigose above, often rooting at the nodes. Leaves opposite; blades ovate to triangular-ovate, apically long acuminate, basally truncate to obtuse, 1.2-5 cm long, 0.5-2.6 cm wide, both surfaces appressed hirsute, the margins serrate. Inflorescences with heads terminal or axillary, solitary or in loose cymes; peduncles to 13 cm long, scattered hirsute below to densely hirsute near the heads, with interspersed glandular trichomes. Heads radiate, hemi- spherical to suboval, 1-2 cm wide, 0.5-1.1 cm tall; involucral bracts 2-3-seriate, herbaceous, the margins minutely laciniate, the outermost bracts ovate to lance- ovate, 1.7-4.3 mm long, 1-2.2 mm wide, sparsely hirsute, the inner bracts elliptic- ovate to oblong-lanceolate, 3.5-7 mm long, 2-3.2 mm wide, slightly to moderately hirsute; receptacle convex to short conic; paleas scarious, 3.7-5.5 mm long, lanceolate, the inner paleas narrower, long attenuate, and with 1-2 small, acute or attenuate lateral lobes and minutely laciniate margins, the outermost paleas broader, obtuse to acute, attached in groups of 3 to the base of an inner involucral bract and enclosing a ray floret; ray florets 6-7, fertile, the ligules 3.6-7 mm long, 2.8-5.4 mm wide, white above, white to roseate below, obovate to subquadrate, trilobed, sparsely hirsute, denser along the base of veins, the tube 1.5-1.7 mm long, hirsute, the style branches oblique to recurved with obtuse tips; disc florets fertile, the corollas yellow, 2.5-3 mm long, the limb narrowly campanulate, hirtellous near the base to sparsely so above, the lobes 5, 0.5-1 mm long, the tube hirtellous, 0.7-1 mm long, the anthers exserted, the appendages ovate to elliptic- ovate, sagittate at the base, the style branches recurved with acute to subulate tips. Ray achenes obconical somewhat compressed, obscurely ridged, black, glabrous or strigose at the apex, ca. 2 mm long, 0.7-0.9 mm wide, pappus of a few bristles, short spatulate, fimbriate scales, or absent; disc achenes obconical, obscurely ridged, black, strigose on the margins or hispidulose over the entire surface, 2 mm long, 0.6-0.7 mm wide, carpopodium present, pappus of a few obovate to spatulate fimbriate scales, 0.5-1.2 mm long, or absent.
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Habit
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herbs
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Distribution
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Sabazia sarmentosa var. papposa is endemic to the Volcan Chiriqui in Panama and the Cordillera de Talamanca in Costa Rica.
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Note
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It occurs along streams, in humid ravines, and in cloud forests from ca. 2500 to 3000 m. Flowering extends from January through July. Sabazia sarmentosa var. papposa is characterized by truncate leaf bases or a triangular ovate leaf shape, and achenes with trichomes distributed over the entire achenical surface.
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Specimen
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CHIRIQUI: Las Cumbres, hogback ridge N of Quebrada, Croat & Porter 16175 (MO). Bajo Chorro, 60001 ft, Davidson 202 (MO, US). Volca'n de Chiriqui, 10400 ft, Davidson 1010 (MO, US). Around El Potrero Camp, Chiriqui Volcano, 2800-3000r m, Pittier 3109 (US). Loma Larga to summit, Volcan de Chiriqui, Woodson et al. 1055 (MO, US). Casita Alta to Cero Copete, 2300-3300, m, Woodson & Schery 348 (MO).
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