Parnassia fimbriata |
Parnassia asarifolia |
|
---|---|---|
fringe grass-of-parnassus, Rocky Mountain parnassia |
kidneyleaf grass of parnassus |
|
Habit | Herbs with caudices. | Herbs with caudices. |
Stems | 10–35 cm. |
18–50 cm. |
Leaves | basal in rosettes; petiole 2–16 cm; blade (of larger leaves) orbicular-reniform to reniform, 10–50 × 15–60 mm, base cordate, apex rounded; cauline usually on middle to distal 1/2 of stem. |
basal in rosettes; petiole 6–17 cm; blade (of larger leaves) reniform to reniform-orbiculate, 20–60 × 25–100 mm, mostly wider than long, base cordate, apex rounded; cauline on proximal 1/2 to middle of stem or absent. |
Flowers | sepals reflexed in fruit, oblong-elliptic to ovate, 4–6 mm, margins hyaline, 0.2–0.5 mm wide, denticulate, erose, or short-fimbriate distally, apex rounded; petals 5–7-veined, oblanceolate to obovate, 8–14 × 4–8 mm, length 2 times sepals, base cuneate, margins fimbriate proximally; stamens 6–9 mm; anthers 1.5–2.5 mm; staminodes oblong-obovate, irregularly divided into 5–10+ oblong, obtuse lobes, usually glandular at apex but tip not differentiated into distinct gland, 3–5 mm, shorter than stamens; ovary green. |
sepals reflexed in fruit, oblong to obovate, 2.5–6.5 mm, margins hyaline, 0.2–0.4 mm wide, entire, apex rounded; petals 11–18-veined, ovate-elliptic, 10–18 × 7–11 mm, length 2–3 times sepals, base abruptly contracted to 2–3.5 mm claw, margins entire or undulate; stamens 8.5–11.5 mm; anthers 2.2–3.2 mm; staminodes 3-fid almost to base, gland-tipped, 5–9 mm, shorter than stamens, apical glands ovoid-conical, 0.5–0.9 mm; ovary green. |
Capsules | 8–12 mm. |
12 mm. |
2n | = 36. |
= 32. |
Parnassia fimbriata |
Parnassia asarifolia |
|
Phenology | Flowering summer. | Flowering summer–early fall. |
Habitat | Stream banks, wet meadows, fens, seeps in forest glades, alpine ravines. | Fens, wet woods, rocky banks, often on acidic soils. |
Elevation | 10–3200 m. (0–10500 ft.) | 200–1500 m. (700–4900 ft.) |
Distribution |
AK; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; NT; YT
|
AL; AR; GA; KY; MD; NC; SC; TN; TX; VA; WV
|
Discussion | Parnassia asarifolia is considered endangered in Kentucky and Maryland. It is uncommon throughout its range. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 12, p. 115. | FNA vol. 12, p. 116. |
Parent taxa | Celastraceae > Parnassia | Celastraceae > Parnassia |
Sibling taxa | ||
Name authority | K. D. König: Ann. Bot. (König & Sims) 1: 391. (1804) | Ventenat: Jard. Malmaison 1: plate 39. (1804) |
Web links |
|