Difference between revisions of "Carex viridula"
Fl. Bor.-Amer. 2: 170. 1803.
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− | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>cespitose. <b>Culms</b> straight or arcuate, 2–85 cm. <b>Leaves</b> of flowering stems shorter than to exceeding culms, to 20 cm × 0.8–5.4 mm; ligules on distal cauline leaves usually obsolete (except in 414.b Carex viridula subsp. brachyrrhyncha). <b>Inflorescences</b>: peduncles of terminal staminate spikes 0–28 mm; bracts to 18 cm × 0.6–3.4 mm; inner band of sheaths concave or truncate. <b>Spikes</b>: proximal pistillate spikes 1–8, contiguous or proximal distant, sessile or short-pedunculate, globose to short-cylindric, 4–17.5 × 3–11 mm; terminal staminate spike sessile or pedunculate, 5–25 × 1–3.6 mm. <b>Scales</b>: pistillate scales pale brown to reddish brown, 1.4–3.2 × 0.8–1.7 mm, margins pale, narrow, hyaline; staminate scales reddish brown, lanceolate to ovate, 2.3–5.2 × 0.7–2 mm, margins narrowly pale hyaline, apex obtuse to acuminate. <b>Anthers</b> 0.9–3.1 mm. <b>Perigynia</b> spreading, yellow to dark olive, 1.8–4.2 × 0.8–2 mm, apex gradually or abruptly narrowed; beak straight or reflexed less than 20°, 0.3–2.1 mm, scabrous or smooth. <b>Achenes</b> 1–1.8 × 0.7–1.4 mm.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>cespitose. <b>Culms</b> straight or arcuate, 2–85 cm. <b>Leaves</b> of flowering stems shorter than to exceeding culms, to 20 cm × 0.8–5.4 mm; ligules on distal cauline leaves usually obsolete (except in 414.b <i>Carex viridula </i>subsp.<i> brachyrrhyncha</i>). <b>Inflorescences</b>: peduncles of terminal staminate spikes 0–28 mm; bracts to 18 cm × 0.6–3.4 mm; inner band of sheaths concave or truncate. <b>Spikes</b>: proximal pistillate spikes 1–8, contiguous or proximal distant, sessile or short-pedunculate, globose to short-cylindric, 4–17.5 × 3–11 mm; terminal staminate spike sessile or pedunculate, 5–25 × 1–3.6 mm. <b>Scales</b>: pistillate scales pale brown to reddish brown, 1.4–3.2 × 0.8–1.7 mm, margins pale, narrow, hyaline; staminate scales reddish brown, lanceolate to ovate, 2.3–5.2 × 0.7–2 mm, margins narrowly pale hyaline, apex obtuse to acuminate. <b>Anthers</b> 0.9–3.1 mm. <b>Perigynia</b> spreading, yellow to dark olive, 1.8–4.2 × 0.8–2 mm, apex gradually or abruptly narrowed; beak straight or reflexed less than 20°, 0.3–2.1 mm, scabrous or smooth. <b>Achenes</b> 1–1.8 × 0.7–1.4 mm.</span><!-- |
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− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_983.xml |
|genus=Carex | |genus=Carex | ||
|section=Carex sect. Ceratocystis | |section=Carex sect. Ceratocystis |
Revision as of 17:12, 18 September 2019
Plants cespitose. Culms straight or arcuate, 2–85 cm. Leaves of flowering stems shorter than to exceeding culms, to 20 cm × 0.8–5.4 mm; ligules on distal cauline leaves usually obsolete (except in 414.b Carex viridula subsp. brachyrrhyncha). Inflorescences: peduncles of terminal staminate spikes 0–28 mm; bracts to 18 cm × 0.6–3.4 mm; inner band of sheaths concave or truncate. Spikes: proximal pistillate spikes 1–8, contiguous or proximal distant, sessile or short-pedunculate, globose to short-cylindric, 4–17.5 × 3–11 mm; terminal staminate spike sessile or pedunculate, 5–25 × 1–3.6 mm. Scales: pistillate scales pale brown to reddish brown, 1.4–3.2 × 0.8–1.7 mm, margins pale, narrow, hyaline; staminate scales reddish brown, lanceolate to ovate, 2.3–5.2 × 0.7–2 mm, margins narrowly pale hyaline, apex obtuse to acuminate. Anthers 0.9–3.1 mm. Perigynia spreading, yellow to dark olive, 1.8–4.2 × 0.8–2 mm, apex gradually or abruptly narrowed; beak straight or reflexed less than 20°, 0.3–2.1 mm, scabrous or smooth. Achenes 1–1.8 × 0.7–1.4 mm.
Distribution
North America, Europe, Asia, Africa (Morocco).
Discussion
Subspecies 3 (3 in the flora).
Selected References
None.
Lower Taxa
Key
1 | Proximal perigynia in each spike reflexed; beak of perigynium forming angle greater than 20° with body; staminate spike on peduncle usually more than 4.5 mm; ligules of distal cauline leaves truncate or rounded, usually well-developed. | Carex viridula subsp. brachyrrhyncha |
1 | Perigynia spreading, straight (curvature at junction of body and beak less than 25°); staminate spike subsessile to long-pedunculate; ligules of distal cauline leaves usually obsolete. | > 2 |
2 | Perigynia less than 3 mm. | > 3 |
2 | Perigynia 3 mm or greater. | > 4 |
3 | Leaves thickened, somewhat succulent, recurved; culms less than 5 cm; staminate spike less than 6.5 mm; coastal areas of Newfoundland and Briar Island, Nova Scotia. | Carex viridula subsp. brachyrrhyncha |
3 | Leaves neither thickened nor recurved; culms greater than 5 cm; staminate spike 7+ mm; widespread. | Carex viridula subsp. viridula |
4 | Proximal pistillate spike remote, often nearly basal; perigynia and foliage often olive or dark green; culms often arcuate or sinuous; staminate spikes on peduncles 3–28 mm. | Carex viridula subsp. oedocarpa |
4 | Pistillate spikes contiguous or aggregated; foliage grayish or light green; perigynia grayish green to yellowish green; culms erect; staminate spikes on peduncles to 20 mm. | Carex viridula subsp. viridula |