Parnassia grandifolia |
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bigleaf grass of parnassus, largeleaf grass of parnassus |
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Habit | Herbs with caudices. |
Stems | 12–70 cm. |
Leaves | basal in rosettes; petiole 3–15 cm; blade (of larger leaves) oblong-ovate to suborbiculate, 25–80 × 20–70 mm, longer than to ca. as long as wide, base rounded to subcordate, apex obtuse; cauline on proximal half of stem or absent. |
Flowers | sepals reflexed in fruit, oblong to ovate, 2.5–5 mm, margins hyaline, 0.2–0.5 mm wide, entire, apex obtuse; petals 7–11-veined, oblong to ovate, 15–22 × 6–10 mm, length 3–4 times sepals, base cuneate to rounded, margins entire or undulate; stamens 7–9 mm; anthers 2–3 mm; staminodes 3-fid almost to base, gland-tipped, 10–16 mm, longer than stamens, apical glands elliptic to subglobose, 0.4–0.6 mm; ovary green, sometimes whitish at base. |
Capsules | 10–15 mm. |
2n | = 32. |
Parnassia grandifolia |
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Phenology | Flowering mid summer–fall. |
Habitat | Wet, calcareous rocks, shores, meadows, fens. |
Elevation | 200–1400 m. (700–4600 ft.) |
Distribution |
AL; AR; FL; GA; KY; LA; MO; MS; NC; OK; SC; TN; TX; VA; WV
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Discussion | Parnassia grandifolia is uncommon throughout most of its range; it is listed as endangered in Florida and Kentucky, threatened in North Carolina, and of special concern in Tennessee. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 12, p. 116. |
Parent taxa | Celastraceae > Parnassia |
Sibling taxa | |
Name authority | de Candolle: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 1: 320. (1824) |
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