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Balduina angustifolia
(Michx.) B. L. Rob.
(redirected from:
Actinospermum angustifolium
(Michx.) Torr. & A. Gray)
Family:
Asteraceae
Coastal-Plain Honeycomb-Head,
more...
coastalplain honeycombhead
[
Actinospermum angustifolium
(Michx.) Torr. & A. Gray]
evanaturalist
FNA
Resources
Brian R. Keener in Flora of North America (vol. 21)
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.
2
n
= 36. Flowering summer-fall (year round south). Dry sandy soils, especially in pinelands; 0-100 m; Ala., Fla., Ga., Miss.
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