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whitehead bogbutton

Habit Herbs, perennial, cespitose, forming domes of rosettes, 15–40 cm.
Leaves

narrowly to broadly linear, gradually attenuate, 2.5–6(–12) cm.

Inflorescences

scape sheaths as long as leaves;

scapes filiform, 0.5 mm thick distally, obscurely 4–5-ribbed, pilose from base to apex (s Florida extreme of species glabrous-scaped);

mature heads whitish to pale gray, globose to short-cylindric, 4–7(–9) mm wide;

receptacle densely pilose;

outer involucral bracts becoming reflexed, brownish, oblong to triangular, 1–1.5 mm, apex acute or obtuse, surfaces hairy abaxially and at margins;

receptacular bracts dark brown, mostly spatulate, 1.5–2 mm, apex obtuse, distally with white, club-shaped hairs.

Staminate flowers

sepals 3, dark brown, narrowly spatulate, 1.5–2 mm, apex acute, abaxially with white hairs;

androphore pale, narrowly club-shaped, 1.5 mm, glabrous;

stamens 3, appendages 3.

Pistillate flowers

sepals 3, pale, oblong to broadly linear, 2 mm (enlarging to 3 mm), apex acute, distal abaxial surface pubescent, hairs white;

gynoecium 3-carpellate;

stylar column pale, dilated apically, appendages 3.

Seeds

pale to dark brown, not lustrous, ellipsoid, 0.5–0.55 mm, longitudinal ribs conspicuous, pale, transverse ribs less conspicuous, pattern fine but coarser than in L. beyrichianum.

Lachnocaulon anceps

Phenology Flowering spring–summer.
Habitat Moist sands and peats of shores, pine savanna, bog and seep edges, flatwoods clearings
Elevation 0–400 m (0–1300 ft)
Distribution
from FNA
AL; FL; GA; LA; MS; NC; SC; TN; TX; VA; West Indies (Cuba)
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 22.
Parent taxa Eriocaulaceae > Lachnocaulon
Sibling taxa
L. beyrichianum, L. digynum, L. engleri, L. minus
Synonyms Eriocaulon anceps, Eriocaulon villosum, L. floridanum, L. glabrum
Name authority (Walter) Morong: Bulletin of the Torrey Botanical Club 18:360. (1891)
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