Cardamine pattersonii |
Cardamine macrocarpa |
|
---|---|---|
Saddle Mountain bitter-cress |
largeseed bittercress |
|
Habit | Annuals or perennials; (short-lived); glabrous throughout. | Annuals; glabrous or sparsely puberulent. |
Rhizomes | cylindrical, slender, 0.5–1.5 mm diam. |
absent. |
Stems | (simple from base), erect, (not flexuous), unbranched or branched basally, 0.6–3 dm. |
(simple or several from base), erect or decumbent, (flexuous or straight, narrowly winged-angled), unbranched or branched distally, (1.4–)2–4.5(–5.3) 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. |
(soon withered), not rosulate. |
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. |
3–9, middle ones 5–9-foliolate, petiolate, leaflets petiolulate or subsessile; petiole 1–3 cm, base not auriculate; lateral leaflets similar to terminal, blade often smaller, with oblique base, distal leaflets subsessile, blade smaller and narrower distally; terminal leaflet (petiolule 0.2–0.8 cm), blade usually broadly ovate to narrowly lanceolate, rarely oblong, 0.7–2 cm × 2–10 mm, base cuneate to rounded, margins repand, crenate, or 3-lobed. |
Racemes | bracteate throughout. |
ebracteate, (rachis slightly to strongly flexuous or geniculate). |
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, 2–3.5 × 0.7–1.2 mm, lateral pair not saccate basally; petals white, linear, 6–8 × 0.7–1 mm; filaments: median pairs 4–5 mm, lateral pair 3.5–4 mm; anthers oblong, 0.7–1 mm. |
Fruiting pedicels | divaricate-ascending, (10–)15–30(–45) mm. |
horizontal to divaricate or ascending, (3–)4–9(–12) mm. |
Fruits | linear, (torulose), 2–3 cm × 1–1.5 mm; ovules 14–20 per ovary; style 2–4 mm. |
linear, (2.5–)3–4.6 cm × 1.7–2.1 mm; ovules 14–22 per ovary; style 1–3 mm. |
Seeds | brown, oblong to ovoid, 1.7–2.2 × 1–1.5 mm, (winged distally). |
dark brown, oblong, 2–2.5 × 0.9–1.2 mm. |
Cardamine pattersonii |
Cardamine macrocarpa |
|
Phenology | Flowering May–Jun. | Flowering Mar–Sep. |
Habitat | Moist mossy cliffs, rocky slopes, mossy banks | Rock crevices and ledges, gravel bars of mountain streams, moist rocky stream banks, shaded loamy forest floors |
Elevation | 800-900 m (2600-3000 ft) | |
Distribution |
OR
|
TX; Mexico (Coahuila, Nuevo León) |
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 macrocarpa is known from the Chisos Mountains, Brewster County. The characters by which var. texana is said to differ from var. macrocarpa are artificially drawn, and the style length, presence or absence of indumentum on the pedicels, and degree of flexuosity of the raceme rachises do not correlate and can vary within a given area. For these reasons, we do not recognize infraspecific taxa in Cardamine macrocarpa. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 480. | FNA vol. 7, p. 476. |
Parent taxa | Brassicaceae > tribe Cardamineae > Cardamine | Brassicaceae > tribe Cardamineae > Cardamine |
Sibling taxa | ||
Synonyms | C. macrocarpa var. texana | |
Name authority | L. F. Henderson: Rhodora 32: 25. (1930) | Brandegee: Zoë 5: 233. (1906) |
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