Brachanthemum in Flora of China @ efloras.org

149. Brachanthemum Candolle, Prodr. 6: 44. 1838.

短舌菊属 duan she ju shu

Authors: Zhu Shi, Christopher J. Humphries & Michael G. Gilbert

Subshrubs, ± procumbent, woody at base, pubescent with basifixed, medifixed, or stellate hairs. Leaves alternate or subopposite, few lobed. Synflorescences cymose; capitula solitary or in ± flat-topped cymes or panicles, heterogamous, radiate, rarely homogamous and discoid. Involucres campanulate, hemispheric, or obconical; phyllaries in 4 or 5 rows, rigidly herbaceous, scarious margin white or brown. Receptacle flat or convex to conical, epaleate. Marginal florets female, fertile, rarely absent; lamina yellow, rarely white. Disk florets yellow, bisexual; corolla tubular, apex 5-lobed. Anther bases obtuse; apical appendage lanceolate. Style branches linear, apex truncate. Achenes terete, 5-striate. Corona absent.

Ten species: C Asia, China, Mongolia; six species (one endemic) in China.

1 Capitula homogamous, ray florets absent; phyllaries abaxially prominently gland-dotted. 6 B. gobicum

+ Capitula heterogamous, ray florets present; phyllaries abaxially not or only obscurely gland-dotted (2)

2 (1) Plants with appressed stellate hairs. 5 B. pulvinatum

+ Plants with simple or medifixed hairs (3)

3 (2) Most leaves palmately 3(-5)-lobed (4)

+ Most leaves pinnately 4-7-lobed, uppermost leaves sometimes palmately 3-lobed (5)

4 (3) Leaves sessile or subsessile, leaf blade obliquely elliptic or suborbicular, ca. 0.6 × 0.5 cm; achenes ca. 2.8 mm. 1 B. mongolicum

+ Leaves rather long petiolate, leaf blade almost orbicular, to 1.5(-2) × ca. 1.5 cm including petiole; achenes 1.8-2.2 mm. 2 B. fruticulosum

5 (3) Capitula (1-)3-15(-20), 2-4 crowded at apex, remainder on long divergent peduncles. 3 B. titovii

+ Capitula 1(-5) on long erect peduncles. 4 B. kirghisorum

Lower Taxa