Cardamine pachystigma |
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rock toothwort, serpentine bittercress |
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Habit | Perennials; glabrous. |
Rhizomes | ovoid to oblong, (3–)4–18 mm diam., (fleshy, deeply underground). |
Stems | erect, unbranched, 1–3 dm. |
Rhizomal leaves | simple, 1.2–2.3 cm; petiole 6.7–19.5 cm; blade orbicular to reniform, or cordate to broadly ovate, 2.7–5.5 cm × 30–68 mm, base cordate to subtruncate, margins with obtuse teeth terminating in apiculae. |
Cauline leaves | 2–5, (crowded distally), simple; petiole 0.3–2.6 cm, base not auriculate; blade similar to basal, 1.8–5.5 cm × 12–47mm, base cuneate or obtuse to subcordate, marginal teeth apiculate. |
Racemes | ebracteate. |
Flowers | sepals oblong, 4–7 × 2–2.5 mm, lateral pair saccate basally; petals usually pink or purple, rarely white, obovate to oblanceolate, 14–18 × 5–7 mm, (claw to 9 mm, apex rounded); filaments: median pairs 7–8 mm, lateral pair 5.5–6.5 mm; anthers oblong, ca. 1.5 mm. |
Fruiting pedicels | divaricate to ascending, 7–24 mm. |
Fruits | linear, 3.2–5.4 cm × 2.2–4 mm; ovules 10–14 per ovary; style 4–7 mm. |
Seeds | brown, broadly ovoid, 2–2.8 × 1.8–2.5 mm. |
Cardamine pachystigma |
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Phenology | Flowering Mar–May. |
Habitat | Forests, lava slides, talus, cliffs |
Elevation | 700-2900 m (2300-9500 ft) |
Distribution |
CA
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Discussion | Cardamine pachystigma is known from the disjunct counties of Plumas, Tehama, and Tulare. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 480. |
Parent taxa | Brassicaceae > tribe Cardamineae > Cardamine |
Sibling taxa | |
Synonyms | Dentaria californica var. pachystigma, C. californica var. pachystigma, Dentaria corymbosa var. grata, Dentaria pachystigma |
Name authority | (S. Watson) Rollins: Harvard Pap. Bot. 1(4): 45. (1993) |
Web links |