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Black Rock wild cabbage

Habit Perennials; glabrous throughout.
Stems

erect or ascending, unbranched or branched distally, 5–11 dm.

Basal leaves

not rosulate;

petiole 1.5–3.8 cm;

blade broadly obovate to broadly ovate or oblong, 3.5–15.5 cm × 22–100 mm, margins entire or coarsely dentate-sinuate.

Racemes

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

Flowers

sepals erect (purplish or sometimes green), ovate-oblong to lanceolate, 7.5–11 × 2.5–3 mm (equal);

petals creamy white (with prominent purple or brown veins),12.5–18.5 mm, blade 6–8 × 2–2.5 mm, not or slightly crisped, claw oblanceolate, 5–9 × 1.2–2 mm;

filaments tetradynamous, median pairs 3–5 mm, lateral pair 2.5–4.5 mm;

anthers narrowly oblong, equal, 3–4.5 mm.

Fruiting pedicels

ascending, 5–17 mm.

Fruits

divaricate to ascending (often distinctly curved), terete, 5.7–12.5 cm × 1.7–2.3 mm;

valves each with obscure midvein;

ovules 76–90 per ovary;

style usually obsolete, rarely to 2.5 mm;

stigma strongly 2-lobed (lobes to 0.4 mm, connivent, opposite replum).

Seeds

1.4–2.1 × 0.8–1.2 mm.

Cau

-line leaves (distalmost) shortly petiolate to subsessile;

blade linear to lanceolate or oblanceolate, margins entire.

2n

= 20.

Caulanthus barnebyi

Phenology Flowering May–Jun.
Habitat Dry, steep slopes, rocky outcrops, on slate, metamorphic, or igneous substrates
Elevation 1300-1500 m (4300-4900 ft)
Distribution
from FNA
NV
[BONAP county map]
Discussion

Of conservation concern.

Caulanthus barnebyi is known from Humboldt and Pershing counties.

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

Source FNA vol. 7, p. 679.
Parent taxa Brassicaceae > tribe Thelypodieae > Caulanthus
Sibling taxa
C. amplexicaulis, C. anceps, C. californicus, C. cooperi, C. coulteri, C. crassicaulis, C. flavescens, C. glaucus, C. hallii, C. heterophyllus, C. inflatus, C. lasiophyllus, C. lemmonii, C. major, C. pilosus, C. simulans
Name authority Rollins & P. K. Holmgren: Brittonia 32: 148, fig. 1. (1980)
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