Gentiana platypetala |
Gentiana pennelliana |
|
---|---|---|
broad-petal gentian |
wiregrass gentian |
|
Habit | Herbs perennial, 0.5–3.5 dm, glabrous. | Herbs perennial, 0.7–3.5 dm, glabrous. |
Stem(s) | 1–5, terminal from caudex, erect or nearly so. |
1, terminal from caudex, decumbent. |
Leaves | cauline, ± evenly spaced; blade widely ovate to elliptic, 1.5–4 cm × 8–22 mm, apex obtuse. |
all cauline, gradually more distantly spaced distally; blade linear to narrowly oblanceolate, 1–3.5 cm × 0.5–5 mm, apex obtuse (proximal leaves) to acute. |
Inflorescences | solitary flowers or occasionally a terminal pair. |
solitary flowers. |
Flowers | calyx 8–12 mm, tube cleft to base or nearly so into 2 spathaceous segments, lobes elliptic to ovate-lanceolate, 0.5–5 mm, margins not ciliate; corolla bright blue, campanulate, open, 30–38 mm, lobes widely ovate-triangular, 6–11 mm, free portions of plicae spreading, low-triangular, less than 1 mm, notched at apex, otherwise entire; anthers distinct. |
calyx 18–45 mm, lobes linear, 10–30 mm, margins not ciliate; corolla white with greenish purple lines abaxially on and below lobes, funnelform, open, 35–65 mm, lobes spreading, ovate, 15–25 mm, free portions of plicae deeply divided into 2 subequal, lacerate, attenuate segments; anthers distinct. |
Seeds | not winged. |
winged. |
Gentiana platypetala |
Gentiana pennelliana |
|
Phenology | Flowering late summer. | Flowering fall–early spring. |
Habitat | Alpine and coastal mountain meadows, heathlands, rocky and boggy slopes. | Moist, open pine woods. |
Elevation | 0–1400(–2100) m. (0–4600(–6900) ft.) | 0–70 m. (0–200 ft.) |
Distribution |
AK; BC |
FL |
Discussion | Gentiana platypetala is restricted to sites near the Pacific largely confined to the insular ranges of British Columbia and southern Alaska from northern Vancouver Island, Queen Charlotte Islands, and Alice Arm, British Columbia, northwest to Kodiak Island, Alaska, but occasionally on mainland coastal ranges. The distinctive spathaceous calyces of this species are strongly suffused with reddish purple. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Gentiana pennelliana is endemic to Bay, Calhoun, Franklin, Gadsden, Gulf, Leon, Liberty, Wakulla, and Walton counties in northern Florida. It usually grows in plant communities in which wiregrass, Aristida stricta, is a prominent component, hence the common name. Gentiana pennelliana differs further from G. autumnalis in its longer, more gradually flaring corolla tube; the division of the lateral veins of the corolla near the base, so that each petal has five primary veins rather than three as in G. autumnalis and the other Gentiana species in the flora area; and stamens 7–12 mm above their insertion on the corolla tube, as contrasted with 13–30 mm in G. autumnalis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Gentianaceae > Gentiana | Gentianaceae > Gentiana |
Sibling taxa | ||
Synonyms | G. covillei, G. gormanii | Diploma tenuifolia, Dasystephana tenuifolia, G. autumnalis subsp. pennelliana |
Name authority | Grisebach in W. J. Hooker: Fl. Bor.-Amer. 2: 58. (1837) | Fernald: Rhodora 42: 198. (1940) |
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