obovate

Petals white, obovate or broadly ovate and glabrous.

Description: Herbs perennial, rhizomatous and stoloniferous; culms few-noded, hollow; leaves eligulate; inflorescence paniculate, with many spikelets, primary bracts leaflike, sheathing; spikelets with few-many, spirally arranged persistent glumes, lower flower mostly functionally male, upper flowers bisexual with two stamens, bristles absent, nutlet ovoid, with a thick corky beak, surface smooth to wrinkled, embryo small and poorly developed, broadly obovate in outline, with a basal, poorly developed root cap and without a leaf primordium (embryo of the Juncus-type).

These are glabrous and dichotomously branched with their first leaves depressed obovate, and with open dichotomous venation (Fig.

It has spiny, obovate, serrated leaves borne in clusters on yellowish stems emanating from a three-spined axil.

+ (present);--(absent); Ob (obtuse); rd (round); Ac (acute); Ov (ovate); api (apiculate); El (elliptic); Obv (obovate); An (antrorse); pt (patent); rt (retrorse).

Leaves are pale green, 10-60 cm long and 7-20 cm wide with obovate or elliptic blades, rounded to acuminate at the tip and base.

Leaves alternate, spiral or distichous; petiolate or subsessile, presence of pulvinus; extrafloral nectaries absent or present, convex, sessile or stipitate, located between the pairs of leaflets or on the petiole; leaflets 1-many pairs, papyraceous to coriaceous, elliptic to oblong, lanceolate to obovate, apex acuminate, rounded to mucronate, base oblique.

Linear to obovate Grayish pale to brown Carduus psycnocephalus L.