Difference between revisions of "Carex platyphylla"
Amer. J. Sci. Arts, ser. 2, 4: 23. 1847.
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|common_names=Carex à larges feuilles | |common_names=Carex à larges feuilles | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
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|basionyms= | |basionyms= | ||
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name=Carex platyphylla | name=Carex platyphylla | ||
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|authority=J. Carey | |authority=J. Carey | ||
|rank=species | |rank=species | ||
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|publication title=Amer. J. Sci. Arts, ser. | |publication title=Amer. J. Sci. Arts, ser. | ||
|publication year=1847 | |publication year=1847 | ||
| − | |special status= | + | |special status=Illustrated;Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_826.xml |
|genus=Carex | |genus=Carex | ||
|section=Carex sect. Careyanae | |section=Carex sect. Careyanae | ||
Latest revision as of 20:43, 5 November 2020
Plants densely cespitose. Culms lateral, ascending, lax, or decumbent, very slender, 14–38 cm × 0.2–0.5 mm. Leaves: basal sheaths white or light brown; sheaths green, lighter to white at base, 1–22 mm; blades erect, ascending, or lax, grayish blue-green, midrib strongly developed, 2 lateral veins developed, 5–22 cm × (7–)11–28 mm, older leaves shriveling or dead at tips. Inflorescences: spikes (2–)3(–4) per culm, scattered; peduncles of pistillate spikes exserted 0–2.2 cm; of staminate spikes 0.1–0.8 cm; bracts from middle and proximal portions of culms 1.4–5.2 cm × 2–6 mm. Pistillate spikes: the proximal basal, erect, 6–16 × 2.8–3.8 mm. Staminate spike 1, linear-clavate, 6–14 × 2–4 mm. Pistillate scales keeled, 3–6 × 1.8–2.2 mm, midribs green, margins hyaline or brown tinged outward, apex apicluate or aristate, awn to 2 mm. Staminate scales obovate, 2.7–5 × 1.8–2.2 mm, midribs green, margins hyaline and brownish to purple tinged outward, apex obtuse to acute. Anthers 3.3–4 mm. Perigynia 2–9 per spike, overlapping, ascending, finely many-veined, obovoid, 3–3.2 × 1.8–2 mm; beak short curved. Achenes ovoid, 2.8–3 × 1.6–1.8 mm, slightly concave at maturity, tightly fitting in perigynia. Style ascending through entire orifice. 2n = 68, 70, n = 32 + (3), 33 + (3), 33 + (4).
Phenology: Fruiting spring.
Habitat: Rich, moist deciduous forests, on rocky or gravelly slopes, soils above limestone, shale, or calcareous metamorphic rocks, often on clay soils
Elevation: 100–1100 m
Distribution
N.B., Ont., Que., Conn., Del., D.C., Ind., Ky., Maine, Md., Mass., Mich., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., Tenn., Vt., Va., W.Va., Wis.
Discussion
Selected References
None.