Cardamine pattersonii |
Cardamine pachystigma |
|
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Saddle Mountain bitter-cress |
rock toothwort, serpentine bittercress |
|
Habit | Annuals or perennials; (short-lived); glabrous throughout. | Perennials; glabrous. |
Rhizomes | cylindrical, slender, 0.5–1.5 mm diam. |
ovoid to oblong, (3–)4–18 mm diam., (fleshy, deeply underground). |
Stems | (simple from base), erect, (not flexuous), unbranched or branched basally, 0.6–3 dm. |
erect, unbranched, 1–3 dm. |
Basal leaves | rosulate or not, 3 or 5-foliolate, 1–6 cm, leaflets petiolulate; petiole 0.4–2.5 cm; lateral leaflets similar to terminal, considerably smaller; terminal leaflet (petiolule 0.1–0.4 cm), blade obovate to orbicular or subcordate, 0.3–1.5(–2.0) cm × 2.5–16(–18) mm, base obtuse to rounded or cordate, margins entire or dentate to slightly sinuately lobed. |
|
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 | 2–4, 3 or 5-foliolate, blade similar to basal, gradually reduced in size as bract, distalmost ones subtending pedicels of flowers (usually simple); leaflet blade or bract linear to linear-oblanceolate, 0.2–0.8 cm. |
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 | bracteate throughout. |
ebracteate. |
Flowers | sepals oblong, (2–)3 × 0.7(–1) mm, lateral pair not saccate basally; petals purple or pink, obovate, 6–9 × 3–4 mm, (not clawed); filaments: median pairs 3–3.5 mm, lateral pair 2–2.5 mm; anthers oblong, 0.7–1 mm. |
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-ascending, (10–)15–30(–45) mm. |
divaricate to ascending, 7–24 mm. |
Fruits | linear, (torulose), 2–3 cm × 1–1.5 mm; ovules 14–20 per ovary; style 2–4 mm. |
linear, 3.2–5.4 cm × 2.2–4 mm; ovules 10–14 per ovary; style 4–7 mm. |
Seeds | brown, oblong to ovoid, 1.7–2.2 × 1–1.5 mm, (winged distally). |
brown, broadly ovoid, 2–2.8 × 1.8–2.5 mm. |
Cardamine pattersonii |
Cardamine pachystigma |
|
Phenology | Flowering May–Jun. | Flowering Mar–May. |
Habitat | Moist mossy cliffs, rocky slopes, mossy banks | Forests, lava slides, talus, cliffs |
Elevation | 800-900 m (2600-3000 ft) | 700-2900 m (2300-9500 ft) |
Distribution |
OR
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CA
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Discussion | Of conservation concern. Cardamine pattersonii is known from Saddle Mountain and Onion Peak in Clastop County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. | FNA vol. 7, p. 480. |
Parent taxa | Brassicaceae > tribe Cardamineae > Cardamine | Brassicaceae > tribe Cardamineae > Cardamine |
Sibling taxa | ||
Synonyms | Dentaria californica var. pachystigma, C. californica var. pachystigma, Dentaria corymbosa var. grata, Dentaria pachystigma | |
Name authority | L. F. Henderson: Rhodora 32: 25. (1930) | (S. Watson) Rollins: Harvard Pap. Bot. 1(4): 45. (1993) |
Web links |