Caulanthus anceps |
Caulanthus hallii |
|
---|---|---|
Lemmon's mustard, royal wild cabbage |
Hall's caulanthus, Hall's wild cabbage |
|
Habit | Annuals; sparsely to densely hirsute. | Annuals; sparsely to densely hispid or subglabrate. |
Stems | erect, unbranched or branched distally (or, rarely, basally), 3.5–15 dm, at least sparsely hirsute basally. |
erect or ascending, unbranched or branched distally, (hollow, sometimes slightly inflated), 2–12 dm. |
Basal leaves | soon withered. |
rosulate; petiole 0.5–3.5 cm; blade oblanceolate to oblong (in outline), 1.5–11.5 cm × 5–55 mm, margins pinnately lobed (lobes dentate). |
Cauline leaves | petiolate (median 0.4–3 cm); blade lanceolate to oblong, 1.5–9.5 cm × 3–30 mm (smaller distally), margins denticulate to subentire (proximal blade margins dentate). |
(distalmost) sessile; blade lanceolate-linear, margins entire, (surfaces sparsely hispid). |
Racemes | without a terminal cluster of sterile flowers, (considerably elongated in fruit). |
(somewhat lax), without a terminal cluster of sterile flowers. |
Flowers | sepals spreading, oblong, 3.5–5.5 × 1–1.7 mm; petals (spreading), white to lavender, 4–8 × 2–4 mm, not channeled or crisped, claw undifferentiated from blade; filaments (spreading), subequal, 3.5–5 mm; anthers narrowly oblong, equal, 1.5–2 mm, (coiled after dehiscence). |
sepals erect, (creamy white), lanceolate to ovate, 3–6.5 × 1.8–2.5 mm (equal); petals creamy white, 6–10.5 mm, blade 3–4 × 1.5–2 mm, not crisped, claw narrowly oblanceolate or oblong, 3–6 × 2–3 mm; filaments in 3 unequal pairs, abaxial pair 2.5–6 mm, lateral pair 1.5–4.5, adaxial pair 4.5–8 mm; anthers narrowly oblong, unequal, 2–3 mm (adaxial pair slightly smaller). |
Fruiting pedicels | ascending to strongly reflexed (slender or thickened), 3–10 mm. |
ascending, 9–25 mm, hispid or subglabrate. |
Fruits | erect or reflexed, (straight), terete, 3–6.7 cm × 1.2–2 mm; valves each with prominent midvein, (usually glabrous, rarely sparsely pubescent); ovules 40–54 per ovary; style (subconical or cylindrical), 1–4 mm; stigma subentire. |
divaricate to ascending (sometimes curved), terete, 6.5–12.5 cm × 1.8–2.2 mm; valves each with prominent midvein; ovules 78–96per ovary; style to 2 mm; stigma slightly 2-lobed. |
Seeds | (brown), 1.4–1.8 × 1–1.3 mm. |
1–1.6 × 0.7–1 mm. |
2n | = 28. |
|
Caulanthus anceps |
Caulanthus hallii |
|
Phenology | Flowering Mar–May. | Flowering Mar–May. |
Habitat | Grassy slopes, open flats, roadsides, fields, hillsides | Rocky areas, chaparral, scrub |
Elevation | 300-1700 m (1000-5600 ft) | 150-1800 m (500-5900 ft) |
Distribution |
CA
|
CA |
Discussion | Caulanthus anceps is distributed in Kern, Monterey, San Benito, San Luis Obispo, Santa Barbara, and Ventura counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Caulanthus hallii is known from Riverside and San Diego counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 679. | FNA vol. 7, p. 682. |
Parent taxa | Brassicaceae > tribe Thelypodieae > Caulanthus | Brassicaceae > tribe Thelypodieae > Caulanthus |
Sibling taxa | ||
Synonyms | Thelypodium lemmonii, Streptanthus anceps | Streptanthus hallii |
Name authority | Payson: Ann. Missouri Bot. Gard. 9: 303. (1923) | Payson: Ann. Missouri Bot. Gard. 9: 290. (1923) |
Web links |