Cardamine clematitis |
Cardamine breweri |
|
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small mountain bittercress |
Brewer's bitter-cress, round bittercress |
|
Habit | Perennials; glabrous throughout. | Perennials; usually glabrous, rarely sparsely pubescent basally. |
Rhizomes | cylindrical, slender, 1–3 mm diam. |
cylindrical, slender (rarely slightly thickened at stem base), 1–3(–4) mm diam. |
Stems | erect, unbranched or rarely branched distally, (0.8–)1–2.5(–3.5) dm. |
erect or decumbent basally, unbranched or branched, (0.6–)1.5–6(–7) dm. |
Rhizomal leaves | simple or 3-foliolate, (1.5–)3–8 cm, leaflets petiolulate or subsessile; petiole (1–)2–6 cm; lateral leaflets subsessile, blade similar to terminal, much smaller; terminal leaflet petiolulate (to 1 cm), blade reniform to cordate, (0.5–)1–2 cm, base cordate, margins entire or 3-lobed. |
absent. |
Cauline leaves | 3–7, 3-foliolate (or distalmost simple), petiolate, leaflets petiolulate or sessile; petiole 0.7–3.5 cm, base auriculate (auricle 0.7–5 mm); lateral leaflets sessile or petiolulate (to 0.5 cm), blade oblong to ovate or oblong; terminal leaflet (petiolule 0.5–1 cm), blade broadly ovate to suborbicular or reniform, 1.5–4 cm × 15–35 mm, margins often 3 or 5-lobed (lobe apex minutely apiculate, glabrous on margin). |
3–8(–11), 3 or 5-foliolate (rarely only terminal leaflet present), petiolate, leaflets petiolulate or subsessile; petiole (0.7–)1–4(–6) cm, base not auriculate; lateral leaflets (when present) subsessile or petiolulate (to 0.4 cm), blade similar to terminal, often much smaller and narrower than terminal; terminal leaflet (petiolule 0.4–1.6 cm), blade usually ovate to orbicular, rarely subcordate, 1.5–4(–5) cm × 15–35(–50) mm, base truncate, rounded, or cordate, margins crenate, dentate, sinuate, or to 11-lobed. |
Racemes | ebracteate. |
ebracteate. |
Flowers | sepals oblong, 2.5–3 × 1–1.5 mm, lateral pair not saccate basally; petals white, oblanceolate, 6–8 × 2–3 mm (not clawed, apex obtuse to subemarginate); filaments: median pairs 3.5–4 mm, lateral pair 2–2.5 mm; anthers ovate, ca. 0.7 mm. |
sepals oblong, 2–3(–3.8) × 1–1.5 mm, lateral pair not saccate basally; petals white, oblanceolate, 3.5–6(–7) × 1.5–2.5(–3) mm (not clawed, apex rounded or ± emarginate); filaments: median pairs 2.5–3.5 mm, lateral pair 2–2.5 mm; anthers oblong, 0.7–1 mm. |
Fruiting pedicels | divaricate-ascending, (7–)10–17 mm. |
ascending to divaricate-ascending, (7–)10–20 mm. |
Fruits | linear, (1.5–)2–3.5(–4) cm × 1.3–1.7 mm; ovules 10–16 per ovary; style 2–4 mm. |
linear, 1.5–3.5 cm × 1–1.5 mm; ovules 14–28 per ovary; style 0.2–1.5(–2.5) mm. |
Seeds | brown, oblong, 1.7–2 × 1–1.2 mm. |
brown, oblong, 1–1.6 × 0.9–1.1 mm. |
Cardamine clematitis |
Cardamine breweri |
|
Phenology | Flowering May–Jun. | Flowering Jun–Jul. |
Habitat | Wet areas, springs, moist slopes | Stream banks, seepage, lakeshores, creeks, wet meadows, swamps, ponds |
Elevation | 1300-1800 m (4300-5900 ft) | 1200-3000 m (3900-9800 ft) |
Distribution |
AL; FL; GA; NC; TN; VA |
CA; CO; ID; MT; NV; OR; UT; WA; WY; BC
|
Source | FNA vol. 7, p. 470. | FNA vol. 7, p. 469. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | C. breweri var. leibergii, C. breweri var. orbicularis, C. breweri var. oregana, C. callosicrenata, C. foliacea, C. hederifolia, C. leibergii, C. modocensis, C. orbicularis, C. oregana, C. vallicola, C. vallicola subsp. leibergii | |
Name authority | Shuttleworth ex A. Gray: Proc. Amer. Acad. Arts 15: 45. (1880) | S. Watson: Proc. Amer. Acad. Arts 10: 339. (1875) |
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