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 21:43, 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
![V23 855-distribution-map.jpg](/w/images/2/20/V23_855-distribution-map.jpg)
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.