Sida glabra


Gard. Dict. ed. 8, Sida no. 14. 1768.

Common names: Sticky sida
Synonyms: Sida glutinosa Commerson ex Cavanilles S. viscidula Blume
Treatment appears in FNA Volume 6. Treatment on page 314. Mentioned on page 310, 311.

Subshrubs, 0.4–1.2 m. Stems erect to often reclining, glandular-puberulent, viscid and with simple 1–2 mm hairs. Leaves: stipules free from petiole, 1-veined, subulate, 1–3 mm, shorter than petiole; petiole 8–30 mm, 1/4–1/2 times length of blade, glandular-puberulent and with simple 1–2 mm hairs; blade ovate, 3–6 cm, 1.5–2 times longer than wide, base cordate, margins serrate-crenate or dentate to base, apex acute, surfaces sparsely stellate-hairy. Inflorescences axillary solitary flowers and 2–4-flowered fascicles, sometimes appearing paniculate. Pedicels jointed 2–5 mm below calyx, slender, 1–2 cm, longer than calyx. Flowers: calyx angulate, 4–5 mm, not beaked in bud, with both stellate and glandular hairs, lobes triangular, acute to short-acuminate; petals white or yellow-orange, 5–6 mm; staminal column hairy; style 5-branched. Schizocarps subconic, 4–5 mm diam., puberulent; mericarps 5, 2.5 mm, dorsally reticulate, apex spined, spines 1–2 mm, minutely antrorsely hairy. 2n = 16.

Phenology: Flowering spring–fall.
Habitat: Disturbed areas, often in shade, urban weed
Elevation: 100 m


V6 573-distribution-map.jpg

Introduced; Fla., Mexico, West Indies, Central America, n South America.


Sida glabra is apparently a casual introduction to Miami-Dade County. The later homonym S. glabra Nuttall from 1834 is a synonym of S. rhombifolia.

Selected References


Lower Taxa

... more about "Sida glabra"
Paul A. Fryxell† +  and Steven R. Hill +
Miller +
Sticky sida +
Fla. +, Mexico +, West Indies +, Central America +  and n South America. +
Disturbed areas, often in shade, urban weed +
Flowering spring–fall. +
Gard. Dict. ed. +
Introduced +
Sida glutinosa +  and S. viscidula +
Sida glabra +
species +