Overview

Distribution

National Distribution

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: Regional endemic: Coastal Plain of Florida, north and west to Georgia and Mississippi.

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Physical Description

Morphology

Description

Annuals (taprooted). Stems 1–20+, branched. Leaves abaxially glabrous or sparsely hairy, adaxially glabrous; basal leaves (absent at flowering) linear-spatulate, 1.5–6 × 0.05–0.19(–0.25) cm, proximal and mid cauline leaves linear, 1.5–4.6 × 0.02–0.07 cm, distal cauline leaves similar, smaller and becoming reduced, distalmost bractlike. Peduncles 1–11.5 cm, sparsely hairy. Heads 1–20+. Involucres 6–15 mm diam. Phyllaries abaxially glabrous; outer proximally yellow, distally green, lanceolate, 2.4–6.7 mm, apices acuminate-aristate; inner lanceolate, 4.2–7 mm, apices acuminate-aristate. Receptacles: pit borders spinulose-cuspidate at angles. Ray florets 5–13; tubes 2–3 mm, laminae 8–18 × 2.2–6.5 mm. Disc florets 30–90; corollas yellow, 3.5–4.5 mm; style branches yellow. Cypselae 1–2 mm; pappi of obovate to orbiculate, entire scales 0.3–0.6 mm. 2n = 36.
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Diagnostic Description

Synonym

Buphthalmum angustifolium Pursh, Fl. Amer. Sept. 2: 564. 1813; Actinospermum angustifolium (Pursh) Torrey & A. Gray
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Ecology

Habitat

Comments: Dry sandy soils, especially in pinelands; sandhills.

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Population Biology

Number of Occurrences

Note: For many non-migratory species, occurrences are roughly equivalent to populations.

Estimated Number of Occurrences: 21 to >300

Comments: Very rough estimate, based on "throughout penninsular Flor- ida" and comments that sp. is common in Florida and Alabama.

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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

Reasons: Possibly more EOs than would warrant G3 rank, but because of relatively limited range must include that as possibility. Until have better idea of EO numbers can't resolve rank. EGR supports GRANK of G3G5 (88-04-04).

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