Chrysosplenium americanum |
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American golden-saxifrage, carpet, dorine d'amérique, golden-saxifrage, water-mat |
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Flowering stems | repent, decumbent, or ascending, branching in distal 1/4–1/2, 4–30 cm, glabrous. |
Leaves | opposite, sometimes alternate distally, membranous. |
Cauline leaves | 4–9; petiole absent or 0.1–4 mm, glabrous; blade ovate to depressed-ovate, round, or flabellate, 2.5–15 × 2–10(–20) mm, base attenuate to cordate, margins 5–7(–9)-crenate or -crenulate, glabrous, surfaces glabrous abaxially and adaxially. |
Inflorescences | terminal or axillary solitary flowers or 2–10-flowered, open cymes; bracts green, not purple-spotted, foliaceous, ovate to flabellate, 2–7 × 2–7 mm, margins subentire or 5–7-crenate or -crenulate. |
Pedicels | absent or 0.1–0.8 mm. |
Flowers | hypanthium green, not purple-spotted, turbinate, 0.9–1.8 × 1.4–2.6 mm, glabrous; sepals spreading to erect, green, greenish yellow, or greenish red, not purple-spotted or purplish brown-spotted distally, broadly triangular or broadly ovate to nearly round, 1.3–1.8 × 0.9–1.6 mm, apex obtuse to rounded; nectary disc conspicuous, green or purple, 8-lobed; stamens 4–8, 0.5–0.9 mm; anthers purple, red, or orange, 0.2–0.3 × 0.4–0.5 mm; styles 0.2–0.6 mm. |
Seeds | 6–16, dark brown, spheroid to ovoid, (0.5–)0.6–0.8 mm, puberulent. |
Stolon(s) | leaves: petiole 1–4 mm, glabrous; blade ovate to depressed-ovate, round, or flabellate, 2.5–15 × 2–10(–20) mm, base attenuate to cordate, margins subentire or 5–7(–9)-crenate or -crenulate, not purple-spotted, glabrous, surfaces glabrous abaxially and adaxially. |
2n | = 18, 24. |
Chrysosplenium americanum |
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Phenology | Flowering Mar–Jul. |
Habitat | Marshy ground, streamsides, seeps, springs, swampy woods |
Elevation | 0-1500 m (0-4900 ft) |
Distribution |
CT; DE; GA; IN; MA; MD; ME; MI; MN; NC; NH; NJ; NY; OH; RI; SC; TN; VA; VT; WI; WV; NB; NS; ON; PE; QC
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Source | FNA vol. 8, p. 72. |
Parent taxa | Saxifragaceae > Chrysosplenium |
Sibling taxa | |
Name authority | Schweinitz ex Hooker: Fl. Bor.-Amer. 1: 242. 1832 , |
Web links |