Difference between revisions of "Carex aestivalis"
Amer. J. Sci. Arts 42: 28. 1842.
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|common_names=Summer sedge | |common_names=Summer sedge | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms= | |synonyms= | ||
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|phenology=Fruiting summer. | |phenology=Fruiting summer. | ||
|habitat=Dry to mesic forests, seepage slopes, and meadows in the mountains | |habitat=Dry to mesic forests, seepage slopes, and meadows in the mountains | ||
| − | |elevation= | + | |elevation=0–1600 m |
|distribution=Ala.;Ga.;Ky.;Md.;N.Y.;N.C.;Pa.;S.C.;Tenn.;Vt.;Va.;W.Va. | |distribution=Ala.;Ga.;Ky.;Md.;N.Y.;N.C.;Pa.;S.C.;Tenn.;Vt.;Va.;W.Va. | ||
|discussion=<p>Variants of <i>Carex aestivalis</i> with larger perigynia have been collected from Virginia and North Carolina. <i>Carex aestivalis</i> apparently hybridizes with <i>C. gracillima</i> and <i>C. virescens</i>.</p> | |discussion=<p>Variants of <i>Carex aestivalis</i> with larger perigynia have been collected from Virginia and North Carolina. <i>Carex aestivalis</i> apparently hybridizes with <i>C. gracillima</i> and <i>C. virescens</i>.</p> | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Carex aestivalis | name=Carex aestivalis | ||
| − | |||
|authority=M. A. Curtis ex A. Gray | |authority=M. A. Curtis ex A. Gray | ||
|rank=species | |rank=species | ||
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|phenology=Fruiting summer. | |phenology=Fruiting summer. | ||
|habitat=Dry to mesic forests, seepage slopes, and meadows in the mountains | |habitat=Dry to mesic forests, seepage slopes, and meadows in the mountains | ||
| − | |elevation= | + | |elevation=0–1600 m |
|distribution=Ala.;Ga.;Ky.;Md.;N.Y.;N.C.;Pa.;S.C.;Tenn.;Vt.;Va.;W.Va. | |distribution=Ala.;Ga.;Ky.;Md.;N.Y.;N.C.;Pa.;S.C.;Tenn.;Vt.;Va.;W.Va. | ||
|reference=None | |reference=None | ||
|publication title=Amer. J. Sci. Arts | |publication title=Amer. J. Sci. Arts | ||
|publication year=1842 | |publication year=1842 | ||
| − | |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_855.xml |
|genus=Carex | |genus=Carex | ||
|section=Carex sect. Hymenochlaenae | |section=Carex sect. Hymenochlaenae | ||
Latest revision as of 20:43, 5 November 2020
Plants densely cespitose. Culms dark maroon at base; flowering stems 25–60 cm, usually longer than leaves at maturity, 0.5–0.7 mm thick, glabrous or sparsely pubescent, finely scabrous within inflorescence. Leaves: basal sheaths maroon, bladeless, pubescent; others grading from maroon to green on back, pale brown-hyaline, red dotted and usually pubescent on front; blades flat, 1.5–3 mm wide, glabrous or sparsely pubescent on both surfaces, especially near sheath, finely scabrous on margins. Inflorescences: peduncles of lateraal spikes 5–25 mm, shorter than spikes, glabrous; peduncle of terminal spike 5–25 mm, glabrous; proximal bracts often equaling or exceeding inflorescences; sheaths to 9 mm; blades 1–2 mm wide. Lateral spikes 2–4, 1 per node, well separated, erect or arching, pistillate with 15–30 perigynia attached 1 mm apart distally and 3 mm apart proximally, linear, 15–50 × 3–3.5 mm. Terminal spike gynecandrous, 20–35 × 1.5–3.5 mm. Pistillate scales pale hyaline, tinged with golden or reddish brown, with broad green midrib, red dotted, oblong-elliptic, shorter than mature perigynia, apex obtuse to cuspidate, glabrous. Perigynia green, copiously red dotted, 2-ribbed and finely 12–15-veined, loosely enveloping achene, ovoid-ellipsoid, 2–3.2 × 0.8–1 mm, membranous, base with short stipe, gradually tapering to acute beakless apex, glabrous. Achenes distinctly stipitate, 1.8–2.1 × 0.8–1 mm, stipe 0.5 mm. 2n = 56.
Phenology: Fruiting summer.
Habitat: Dry to mesic forests, seepage slopes, and meadows in the mountains
Elevation: 0–1600 m
Distribution
Ala., Ga., Ky., Md., N.Y., N.C., Pa., S.C., Tenn., Vt., Va., W.Va.
Discussion
Variants of Carex aestivalis with larger perigynia have been collected from Virginia and North Carolina. Carex aestivalis apparently hybridizes with C. gracillima and C. virescens.
Selected References
None.