The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

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. Author: Guy L. Nesom.
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)
Web links