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annual trampweed

trampweed

Habit Annuals, 3–30 cm (taprooted or fibrous-rooted, not stoloniferous).
Stems

usually with decumbent to nearly procumbent branches arising from bases, 3–30 cm, loosely tomentose.

usually 1, erect to decumbent.

Leaves

crowded;

blades 7–20(–30) × 1.5–4 mm, apices truncate-apiculate to retuse.

cauline; alternate;

sessile;

blades spatulate or oblanceolate to lance-linear, bases ± cuneate, margins entire (usually revolute), faces bicolor, abaxial gray, tomentose, adaxial green, glabrous.

Involucres

narrowly ovoid or nearly cylindric [campanulate or broadly turbinate], 8–11 mm.

Receptacles

flat, smooth, epaleate.

Peripheral (pistillate) florets

10–25 (more numerous than bisexual);

corollas whitish to purplish.

Phyllaries

in 3–5+ series, usually greenish to stramineous, sometimes purplish (hyaline, stereomes not glandular), unequal, chartaceous toward tips.

Heads

clusters subtended by bractlike leaves.

disciform, usually in ± capitate to loose, spiciform arrays, rarely borne singly (in leaf axils).

Cypselae

1.6 mm;

pappi 10–11 mm.

obovoid, ± compressed (2–3-nerved), faces silvery sericeous (hairs not myxogenic);

pappi persistent, of 20–30+, distinct or basally connate, ± plumose bristles in 1 series.

Inner

(bisexual) florets 3–5;

corollas white to purplish.

x

= 14.

2n

= 14.

Facelis retusa

Facelis

Phenology Flowering Mar–Jun.
Habitat Lawns, roadsides, pastures, other disturbed sites, usually on sandy soils
Elevation 0–100 m (0–300 ft)
Distribution
from FNA
AL; AR; FL; GA; KS; LA; MS; NC; OK; SC; TX; VA; South America; Australia
[WildflowerSearch map]
[BONAP county map]
from USDA
North America; South America; Africa; Australia
[BONAP county map]
Discussion

Species 3 or 4 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 19, p. 443. FNA vol. 19, p. 442.
Parent taxa Asteraceae > tribe Gnaphalieae > Facelis Asteraceae > tribe Gnaphalieae
Subordinate taxa
F. retusa
Synonyms Gnaphalium retusum
Name authority (Lamarck) Schultz-Bipontinus: Linnaea 34: 532. (1866) Cassini: Bull. Sci. Soc. Philom. Paris 1819: 94. (1819)
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