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San Diego jewelflower, San Diego wild cabbage, slender pod jewelflower

Nevada wild cabbage, slender wild cabbage

Habit Annuals; hispid basally, glabrous or subglabrate distally. Perennials; glabrous (or petioles and sepals pubescent).
Stems

erect, usually branched distally, 2.5–12 dm, hispid.

erect or ascending, unbranched or branched distally, (hollow, sometimes slightly inflated), 2–10 dm.

Basal leaves

weakly rosulate;

petiole 0.3–3 cm;

blade linear-oblanceolate to linear-oblong, 0.7–7 cm × 2–18 mm, margins coarsely dentate or pinnately lobed.

rosulate;

petiole 0.5–9 cm;

blade obovate to oblanceolate or elliptic (in outline), 1–14 cm × 5–25 mm, margins entire, dentate-sinuate, lyrate, or pinnatifid-runcinate.

Cauline leaves

(median) sessile;

blade linear-lanceolate, 5–16 cm × 5–40 mm, (smaller distally, base amplexicaul to sagittate), margins dentate or (distalmost) entire.

(distalmost) shortly petiolate;

blade linear to narrowly oblanceolate, margins entire.

Racemes

(densely flowered), without a terminal cluster of sterile flowers.

(densely flowered), without a terminal cluster of sterile flowers.

Flowers

sepals erect (purple or yellow to creamy white), lanceolate, 3–8 × 1–1.8 mm (equal);

petals purple or yellowish (often with darker purple veins), 5–15 mm, blade 2–6 × 1–1.5 mm, not crisped, claw narrowly oblanceolate or oblong, 3–9 × 1–1.5 mm;

filaments tetradynamous, median pairs 3–6 mm, lateral pair 2–5 mm;

anthers oblong, equal, 1–3 mm.

sepals erect, (creamy white or purple), ovate to lanceolate, 6.5–9.5 × 2.7–4 mm, (equal, pubescent);

petals purple, 11–17 mm, blade 4–7 × 1–1.7 mm, not or hardly crisped, claw oblanceolate, 7–13 × 2.5–3.5 mm;

filaments tetradynamous, median pairs 5–7 mm, lateral pair 4–6 mm;

anthers narrowly oblong, equal, 4–6 mm.

Fruiting pedicels

reflexed, 2–8 mm, glabrous or hispid.

ascending, 1–6 mm.

Fruits

reflexed (often straight, rarely curved), latiseptate or 4-angled, 4.5–10 cm × 1–1.5 mm;

valves each with prominent midvein;

ovules 56–82 per ovary;

style 0.5–3.5mm;

stigma slightly 2-lobed.

erect to ascending, terete or slightly latiseptate, 4.5–12 cm × 2.2–2.8 mm;

valves each with obscure midvein;

ovules 46–58 per ovary;

style obsolete or, rarely, to 0.4 mm;

stigma slightly 2-lobed (lobes opposite valves).

Seeds

1.2–2 × 0.9–1.4 mm.

2–3.5 × 1.3–1.8 mm.

2n

= 28.

= 28.

Caulanthus heterophyllus

Caulanthus major

Phenology Flowering Mar–May. Flowering May–Aug.
Habitat Coastal scrub, chaparral, rocky areas Margin of montane forests, sagebrush, pinyon-juniper woodland
Elevation 0-1400 m (0-4600 ft) 1500-3200 m (4900-10500 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; NV; OR; UT
[WildflowerSearch map]
[BONAP county map]
Discussion

Caulanthus heterophyllus is a common species distributed from Santa Barbara County southward into northwestern Baja California, Mexico.

R. E. Buck (1993) divided the species into two varieties, including one invalidly published, based on flower color, but these are treated here as mere color variants.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Caulanthus major is found in eastern and southern California, Nevada, southeastern Oregon, and Utah.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 7, p. 682. FNA vol. 7, p. 684.
Parent taxa Brassicaceae > tribe Thelypodieae > Caulanthus Brassicaceae > tribe Thelypodieae > Caulanthus
Sibling taxa
C. amplexicaulis, C. anceps, C. barnebyi, C. californicus, C. cooperi, C. coulteri, C. crassicaulis, C. flavescens, C. glaucus, C. hallii, C. inflatus, C. lasiophyllus, C. lemmonii, C. major, C. pilosus, C. simulans
C. amplexicaulis, C. anceps, C. barnebyi, C. californicus, C. cooperi, C. coulteri, C. crassicaulis, C. flavescens, C. glaucus, C. hallii, C. heterophyllus, C. inflatus, C. lasiophyllus, C. lemmonii, C. pilosus, C. simulans
Synonyms Streptanthus heterophyllus, C. stenocarpus, Guillenia heterophylla, Streptanthus repandus C. crassicaulis var. major, C. major var. nevadensis, Streptanthus major
Name authority (Nuttall) Payson: Ann. Missouri Bot. Gard. 9: 298. (1923) (M. E. Jones) Payson: Ann. Missouri Bot. Gard. 9: 291. (1923)
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