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Cardamine penduliflora

wetlands bitter-cress, Willamette Valley bitter-cress

Habit Perennials; glabrous throughout.

(tuberiform, fragile), 4–9(–11) mm diam., (fleshy).


erect or decumbent at base, unbranched, 2–6(–7.5) 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.

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.




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.

Fruiting pedicels

ascending to divaricate, (10–)20–40(–60) mm.


linear, 2.5–4.5 cm × 1.4–2 mm;

ovules 12–24 per ovary;

style 4–6 mm.


brown, oblong, 1.8–2 × 1–1.5 mm.

Cardamine penduliflora

Phenology Flowering Mar–May.
Habitat Shallow pools, wet grounds, marshes, meadows, creeks, channels, swampy woods
Elevation 50-150 m (200-500 ft)
from FNA
[WildflowerSearch map]
[BONAP county map]

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.
Parent taxa Brassicaceae > tribe Cardamineae > Cardamine
Sibling taxa
C. angulata, C. angustata, C. bellidifolia, C. blaisdellii, C. breweri, C. bulbosa, C. californica, C. clematitis, C. concatenata, C. constancei, C. cordifolia, C. digitata, C. diphylla, C. dissecta, C. douglassii, C. flagellifera, C. flexuosa, C. hirsuta, C. holmgrenii, C. impatiens, C. longii, C. macrocarpa, C. maxima, C. micranthera, C. microphylla, C. nuttallii, C. nymanii, C. occidentalis, C. oligosperma, C. pachystigma, C. parviflora, C. pattersonii, C. pensylvanica, C. pratensis, C. purpurea, C. rotundifolia, C. rupicola, C. umbellata
Synonyms C. rariflora
Name authority O. E. Schulz: Bot. Jahrb. Syst. 32: 538. (1903)
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