Difference between revisions of "Rhynchospora intermedia"
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==Description== | ==Description== | ||
<!-- Basic life history facts such as annual/perrenial, monoecious/dioecious, root morphology, seed type, etc. --> | <!-- Basic life history facts such as annual/perrenial, monoecious/dioecious, root morphology, seed type, etc. --> | ||
| + | The correct name for this species is Rhynchospora pineticola. A new page will be made for that name and edits made under that entry. | ||
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| + | Documentation: Flora of North America, Volume 23 (2002), Bridges and Orzell (2000) | ||
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| + | Rhynchospora pineticola C. B. Clarke, Bull. Misc. Inform. Kew, Addit. Ser. 8: 40. 1908. | ||
| + | Phaeocephalum intermedium (Chapman) House; Rhynchospora intermedia (Chapman) Britton 1892, not Beyrich ex Kunth 1835; R. plumosa Elliott var. intermedia Chapman | ||
| + | Plants perennial, mostly densely cespitose, 20–70 cm, base deep rich red brown; rhizomes absent. Culms erect to ascending, leafy, stiff. Leaves shorter than scape; blades narrowly linear, (1–)2–3 mm wide, margins involute, apex trigonous, tapering. Inflorescences: clusters 1–2, if 2 then close together, dense, broadly turbinate to hemispheric or lobed globose; primary leafy bract linear, stiff, exceeding clusters. Spikelets light to dark red brown, lance ovoid, 3.5–6 mm, apex acuminate; fertile scales ovate, convex, 3–3.5(–4) mm, apex acuminate, low midrib excurrent or not. Flowers: perianth bristles 6, reaching at least to tubercle base, plumose from base to more than 1/2 length of fruit body. Fruits 1(–2) per spikelet, (2–)2.5–2.8(–3) mm; body red brown or brown, tumidly obovoid, (1.5–)2–2.2 × 1–1.7 mm; surfaces interruptedly transversely rugulose; tubercle broadly conic, 0.5–0.8(–1) mm, base broadly 2 lobed, apex often apiculate. | ||
| + | Fruiting spring–fall or all year. Sands and sandy peat of bog margins, pinelands and pine saw palmetto flats among wiregrass; 0–200 m; Fla.; West Indies (Cuba). | ||
| + | Rhynchospora pineticola is distinguished from taller extremes of R. plumosa by its thicker leaves and scapes and its longer spikelets and fruit. Its bases are a deep rich red-brown rather than the pale brown or dull deep brown of R. plumosa. | ||
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==Distribution== | ==Distribution== | ||
==Ecology== | ==Ecology== | ||
Revision as of 10:19, 23 June 2015
| Rhynchospora intermedia | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta – Flowering plants |
| Class: | Liliopsida – Monocotyledons |
| Order: | Cyperales |
| Family: | Cyperaceae |
| Genus: | Rhynchospora |
| Species: | R. intermedia |
| Binomial name | |
| Rhynchospora intermedia C.B. Clarke | |
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| Natural range of Rhynchospora intermedia from USDA NRCS Plants Database. | |
Contents
Description
The correct name for this species is Rhynchospora pineticola. A new page will be made for that name and edits made under that entry.
Documentation: Flora of North America, Volume 23 (2002), Bridges and Orzell (2000)
Rhynchospora pineticola C. B. Clarke, Bull. Misc. Inform. Kew, Addit. Ser. 8: 40. 1908.
Phaeocephalum intermedium (Chapman) House; Rhynchospora intermedia (Chapman) Britton 1892, not Beyrich ex Kunth 1835; R. plumosa Elliott var. intermedia Chapman Plants perennial, mostly densely cespitose, 20–70 cm, base deep rich red brown; rhizomes absent. Culms erect to ascending, leafy, stiff. Leaves shorter than scape; blades narrowly linear, (1–)2–3 mm wide, margins involute, apex trigonous, tapering. Inflorescences: clusters 1–2, if 2 then close together, dense, broadly turbinate to hemispheric or lobed globose; primary leafy bract linear, stiff, exceeding clusters. Spikelets light to dark red brown, lance ovoid, 3.5–6 mm, apex acuminate; fertile scales ovate, convex, 3–3.5(–4) mm, apex acuminate, low midrib excurrent or not. Flowers: perianth bristles 6, reaching at least to tubercle base, plumose from base to more than 1/2 length of fruit body. Fruits 1(–2) per spikelet, (2–)2.5–2.8(–3) mm; body red brown or brown, tumidly obovoid, (1.5–)2–2.2 × 1–1.7 mm; surfaces interruptedly transversely rugulose; tubercle broadly conic, 0.5–0.8(–1) mm, base broadly 2 lobed, apex often apiculate. Fruiting spring–fall or all year. Sands and sandy peat of bog margins, pinelands and pine saw palmetto flats among wiregrass; 0–200 m; Fla.; West Indies (Cuba). Rhynchospora pineticola is distinguished from taller extremes of R. plumosa by its thicker leaves and scapes and its longer spikelets and fruit. Its bases are a deep rich red-brown rather than the pale brown or dull deep brown of R. plumosa.
