Rhynchospora intermedia
| Rhynchospora pineticola | |
|---|---|
| |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta – Flowering plants |
| Class: | Liliopsida – Monocotyledons |
| Order: | Cyperales |
| Family: | Cyperaceae |
| Genus: | Rhynchospora |
| Species: | R. pineticola |
| Binomial name | |
| Rhynchospora pineticola 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.
Distribution
Sand pine and low oak scrub, dry sandy scrubby flatwoods, longleaf pine sandhill savannas. All year. Frequent on the sand ridges of the central Florida peninsula, extending south to Collier and Palm Beach counties along the coastal sand ridges, disjunct to Dade County, less frequent northward to Putnam and St. Johns counties in northeast Florida, and northwest along the Big Bend coastal sand ridges to Franklin County. Probably endemic to Florida, with an unverified report from Alabama.
