Cardamine penduliflora |
Cardamine longii |
|
---|---|---|
wetlands bitter-cress, Willamette Valley bitter-cress |
long's bitter-cress |
|
Habit | Perennials; glabrous throughout. | Perennials; glabrous throughout. |
Rhizomes | (tuberiform, fragile), 4–9(–11) mm diam., (fleshy). |
cylindrical, slender, 0.8–1.5 mm diam. |
Stems | erect or decumbent at base, unbranched, 2–6(–7.5) dm. |
prostrate to decumbent or erect, unbranched or branched, 0.5–4(–6) dm. |
Rhizomal leaves | 5–13-foliolate, (4–)10–18(–25) cm, leaflets petiolulate or subsessile; petiole (3–)5–12(–17) cm; lateral leaflets subsessile, blade similar to terminal, sometimes smaller; terminal leaflet (petiolule 0.4–0.7 cm), blade oblong to elliptic or ovate, (0.4–)0.7–1.7(–2) cm, base cuneate or obtuse, margins entire or obscurely 3-lobed. |
absent. |
Cauline leaves | 2–6, 5–11-foliolate, petiolate, leaflets petiolulate or sessile; petiole 3–10 cm, base not auriculate; lateral leaflets sessile, blade similar to terminal, smaller; terminal leaflet (petiolule 0.5–1.5 cm), blade narrowly ovate or oblong to oblanceolate, 1.5–3.5 cm × 2–15 mm, margins entire or toothed to 3-lobed. |
3–10, usually simple, rarely 3 or 5-foliolate, petiolate; petiolulate or sessile; petiole 0.4–2.5 cm, base not auriculate; lateral leaflets (when present) sessile or petiolulate (to 0.2 cm), blade similar to terminal, considerably smaller; terminal leaflet blade orbicular to reniform or ovate to oblong, 0.4–3 cm × 3–20 mm, (somewhat fleshy), base subcordate to rounded or subtruncate, margins entire or repand, rarely undulate, (apex rounded). |
Racemes | ebracteate. |
ebracteate. |
Flowers | sepals oblong to ovate, 3.5–5 × 1.8–2.5 mm, lateral pair saccate basally; petals white, obovate, 12–16 × 6–8 mm, (not clawed, apex rounded or subemarginate); filaments: median pairs 6–7 mm, lateral pair 4–5 mm; anthers oblong, 1.5–1.8 mm. |
sepals ovate, 0.7–1.2 × 0.5–0.7 mm, lateral pair not saccate basally; petals absent or rudimentary, to 0.7 mm; filaments 0.5–0.8 mm; anthers ovate, 0.1–0.2 mm. |
Fruiting pedicels | ascending to divaricate, (10–)20–40(–60) mm. |
divaricate-ascending to spreading, 0.5–2(–4) mm. |
Fruits | linear, 2.5–4.5 cm × 1.4–2 mm; ovules 12–24 per ovary; style 4–6 mm. |
narrowly oblong to linear, (3–)5–10(–15) × 0.8–1.2 mm; ovules 6–22 per ovary; style 0.2–0.5(–1) mm. |
Seeds | brown, oblong, 1.8–2 × 1–1.5 mm. |
light or yellowish brown, oblong or ovoid, 1–1.4 × 0.7–1 mm. |
Cardamine penduliflora |
Cardamine longii |
|
Phenology | Flowering Mar–May. | Flowering Jun–Sep. |
Habitat | Shallow pools, wet grounds, marshes, meadows, creeks, channels, swampy woods | Tidal marshes, mud flats, tidal shores of rivers, shallow water, swampy areas, shady rocky crevices covered at high tide |
Elevation | 50-150 m (200-500 ft) | 0-10 m (0-0 ft) |
Distribution |
OR
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FL; MA; MD; ME; NC; NJ; NY; SC; VA |
Discussion | Cardamine penduliflora is known from Douglas County north into Benton, Lane, Marion, Polk, and Yamhill counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 7, p. 481. | FNA vol. 7, p. 476. |
Parent taxa | Brassicaceae > tribe Cardamineae > Cardamine | Brassicaceae > tribe Cardamineae > Cardamine |
Sibling taxa | ||
Synonyms | C. rariflora | |
Name authority | O. E. Schulz: Bot. Jahrb. Syst. 32: 538. (1903) | Fernald: Rhodora 19: 91. (1917) |
Web links |