Cardamine bulbosa |
Cardamine longii |
|
---|---|---|
bulb bittercress, bulbous bitter-cress, spring cress |
long's bitter-cress |
|
Habit | Perennials; glabrous or sparsely pubescent distally. | Perennials; glabrous throughout. |
Rhizomes | (tuberous at stem base, sometimes also at intervals) subglobose, lobed, 4–15 mm diam. (fleshy). |
cylindrical, slender, 0.8–1.5 mm diam. |
Stems | erect, unbranched, (1–)2–6 dm, glabrous or sparsely pubescent on distal 1/2 (trichomes 0.02–0.1 mm). |
prostrate to decumbent or erect, unbranched or branched, 0.5–4(–6) dm. |
Rhizomal leaves | simple, (2–)4–13(–16) cm; petiole (1.5–)2.5–10(–13) cm; blade usually reniform to cordate or ovate, rarely oblong, (1–)2–4(–6) cm, base obtuse to cordate, margins usually repand or entire, rarely shallowly dentate. |
absent. |
Cauline leaves | (2–)4–10(–14), simple, petiolate or sessile; (middle ones) shortly petiolate or (distally) sessile, base not auriculate; blade ovate to oblong, or oblong-linear to lanceolate, 3–6(–9) cm × 10–30(–45) mm, margins entire, repand, or dentate (margins minutely pubescent). |
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, 2.5–4.5 × 1.5–2 mm, lateral pair not saccate basally, (glabrous); petals usually white, rarely pale pink, obovate, (6–)7–12(–16) × 3–5 mm, (short-clawed, apex rounded); filaments: median pairs 4.5–7 mm, lateral pair 2–3.5 mm; anthers oblong, 1–1.5 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–)15–22(–30) mm. |
divaricate-ascending to spreading, 0.5–2(–4) mm. |
Fruits | linear, 2–3.5(–4) cm × 1.4–1.7 mm; ovules 14–24 per ovary; style 2–4(–5) 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 | dark orange to greenish yellow, oblong or globose, 1.7–2.1 × 1–1.4 mm. |
light or yellowish brown, oblong or ovoid, 1–1.4 × 0.7–1 mm. |
2n | = 16, 56, 64, 80, 96, 112. |
|
Cardamine bulbosa |
Cardamine longii |
|
Phenology | Flowering Mar–Jun. | Flowering Jun–Sep. |
Habitat | Wet grounds, low woodland, moss hummocks, alluvial woods, grassy floodplains, wet pastures, meadows, pinelands, creek bottoms, stream banks, sandy bottoms, ditches, mesic or wet forests, swamps, marshes, seepy bluffs | Tidal marshes, mud flats, tidal shores of rivers, shallow water, swampy areas, shady rocky crevices covered at high tide |
Elevation | 0-900 m (0-3000 ft) | 0-10 m (0-0 ft) |
Distribution |
AL; AR; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; NE; NH; NJ; NY; OH; OK; PA; SC; SD; TN; TX; VA; VT; WI; WV; MB; ON; QC
|
FL; MA; MD; ME; NC; NJ; NY; SC; VA |
Source | FNA vol. 7, p. 469. | FNA vol. 7, p. 476. |
Parent taxa | Brassicaceae > tribe Cardamineae > Cardamine | Brassicaceae > tribe Cardamineae > Cardamine |
Sibling taxa | ||
Synonyms | Arabis bulbosa, Arabis rhomboidea, C. rhomboidea, C. rhomboidea var. hirsuta, C. rhomboidea var. parviflora, C. rhomboidea var. pilosa, Dentaria rhomboidea, Dracamine bulbosa | |
Name authority | (Schreber ex Muhlenberg) Britton: Prelim. Cat., 4. (1888) | Fernald: Rhodora 19: 91. (1917) |
Web links |