作者

KAO, Muh-Tsung & DEVOL, Charles E.

型態特徵

Herbs or rarely shrubs. Leaves radical or cauline and opposite, entire, pinnatifid or pinnate; stipules absent. Flowers bracteate, sessile, cymose, bisexual, sometimes polygamous or unisexual, usually small; bracts sometimes fused to form an an outer epicalyx; calyx tube adnate to ovary, plumose or sometimes coronate; corolla superior, gamopetalous, tubular, infundibuliform or rotate, with a spur at base, segments 3–5, often equal, imbricate in bud; stamens 1–4, rarely 5, adnate to corolla tube, alternate with the lobes; ovary inferior, 1–3-celled, ovules 1 per cell, one locule fertile; style solitary, filiform, slender, stigma 2 or 3-lobed or capitate; ovules solitary, pendulous. Fruit a cypselate achene, 1-seeded; seed pendulous; embryo straight.

屬

Ten genera with about 400 species, mainly distributed in the northern hemisphere and South America, a few species in Africa. Three genera and eight species in Taiwan.

參考文獻

• KAO, Muh-Tsung & DEVOL, Charles E., Flora of Taiwan, second edition 4: 760. 1998.  (Fl. Taiwan 2nd edit.)