Home Brassicaceae
About
Name Search
Genera
Species List
Caulanthus coulteri S. Watson Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font
 

Published In: United States Geological Expolration [sic] of the Fortieth Parallel. Vol. 5, Botany 27. 1871. (Botany (Fortieth Parallel)) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 7/23/2009)
 

Export To PDF Export To Word

6. Caulanthus coulteri S. Watson, Bot. U.S. Geol. Survey 40th Parallel 5: 27. 1871; Streptanthus coulteri (S. Watson) Greene, Fl. Francisc. 257. 1891. TYPE: United States, California, Kern Co., 1869, J. M. Coulter s.n. (holotype, GH!).

Herbs, annual, hispid with simple and stalked 2-rayed forked trichomes, rarely glabrous above, glaucous. Stems 1–16(–25) dm, erect, often branched above, sparsely hispid basally. Basal leaves rosulate; petiole 0.3–5 cm; blade narrowly oblong to oblanceolate, 0.7–12 x 0.4–2.5 cm, pubescent with simple and forked trichomes, margin pinnatifid to coarsely dentate-sinuate; middle cauline leaves sessile, lanceolate to linear-lanceolate, 1–18(–26) x 0.3–3.5(–4.5) cm, gradually reduced in size upwards, glabrous, base amplexicaul, margin dentate or entire. Racemes with a terminal cluster of sterile flowers, ebracteate, densely flowered, elongated in fruit; fruiting pedicels reflexed, 3–16 mm, pubescent or rarely glabrous. Sepals dark purple in bud, becoming yellowish green with purplish or brown margins, ovate to narrowly lanceolate, 5–15(–19) ´ 2–4.5 mm, erect to ascending, subequal, keeled, glabrous or pubescent with simple and forked trichomes; petals white or purplish with dark purple veins, 8–25(–30) mm; blade 4–10 x 1.5–4 mm, crisped; claw oblanceolate, 4–12 x 2–2.5 mm; filaments in 3 unequal pairs, free or adaxial pair connate and 5.5–11 mm, abaxial pair 3.5–8.5 mm, lateral pair 1.5–7 mm; anthers oblong to linear-oblong 1–5 mm, those of adaxial pair smaller; ovules 70–96 per ovary. Fruits 3.5–15 cm ´ 2.2–3.5 mm, reflexed or rarely divaricate, terete or only slightly latiseptate, often straight; valves with a prominent midvein basally; style obsolete or up to 4 mm; stigma strongly 2-lobed, lobes 0.5–1.5 mm, opposite valves. Seeds 1.5–3.5 x 1.5–2.2 mm; cotyledons deeply 3-fid.

Flowering: Mar–Jun(–Jul).

Habitat: grassland, scrub, woodland, chaparral.

Elevation: 100–2100 m.

Distribution: United States (C and S California).

 

 
 
© 2022 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110