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Erechtites Raf.


PENG, Ching-I & CHUNG, Shih-Wen

Erechtites valerianifolia

Credit: HAST

Coarse erect usually branching annual herbs. Leaves alternate, simple, often pubescent. Heads many-flowered, tubular, in terminal paniculate corymbs. Involucre cylindric, swollen at base, principal bracts in 1 series, linear, acute, with or without some outer smaller bracts. Receptacle concave, glabrous. Ray florets marginal, pistillate, fertile, in 2-several series, corolla filiform, limb 2-4-toothed. Disc florets perfect, fertile, corolla long tubular, limb 4- or 5-toothed. Anthers obtuse, entire at base. Style arms elongated, truncate or obtuse at apex. Achenes linear-oblong, angled or striate, narrowed toward apex. Pappus copious, of very fine, soft, white, hair-like bristles.

About 12 species, native of America and Australia; two species introduced and naturalized in Taiwan.


1 Stem coarsely pubescent; leaves irregularly short dentate; pappus white.   Erechtites hieracifolia
+ Stem nearly glabrous; leaves irregularly double dentate; pappus pink in upper half.   Erechtites valerianifolia

Lower Taxa

Related Synonym(s):


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