Description
Key Characters:
Growth Form:
Annual or perennial herbs to subshrubs or shrubs, stellate pubescent throughout.
Stems:
Roots:
Leaves:
Leaves simple.
Alternate.
Margins usually 2-5-lobed or 2-5 toothed.
Sometimes 3-veined or 5-veined from base.
Petiolate (nearly all species).
Stipules present.
Flowers:
Flowers few in axillary cymes, +/- with an involucel subtending the calyx, the bracts distinct or basally connate.
Flowers bisexual (perfect).
Calyx of 5 sepals, distinct, appendaged near apex, valvate in bud.
Corolla actinomorphic to moderately zygomorphic, tubular to rotate or reflexed. corolla of 5 petals, obovate, distinct from each other but adnate at base to staminal column, convolute in bud, or absent.
Stamens 10 to numerous, monadelphous, forming a staminal column; filaments terminating the staminal column or borne below a 5-dentate apex; anthers monothecal.
Pollen globose, echinate.
Ovary superior, 2-5-celled; ovules 2 per cell, the carpels borne in a single whorl or rarely seemingly superposed whorls, placentation axile; style exceeding the staminal column, unbranched and stigmatically lobed at apex or branched, filiform; stigma 2-5-toothed, terminal or decurrent.
Fruit:
Globose capsules; indehiscent or separating into cocci; covered all over with stout hooked bristles.
Seeds 1-2; when 2; separated by a false partition; reniform to turbinate; with or without endosperm.
Ploidy:
Habitat:
Elevation Range: