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Anthoxanthum horsfieldii (Kunth ex Benn.) Reeder

Comments

provided by eFloras
Anthoxanthum horsfieldii is a variable species of mountains in SE Asia, extending into India. There are small differences between the populations from different islands or mountain areas, and these populations are sometimes recognized at varietal rank. However, this approach has led to a proliferation of varieties based on overlapping, only partially segregating characters and is not followed here.

Both lower florets appear to be sterile and epaleate in Taiwan, but in SE Asia the first floret may sometimes be staminate with a palea. Anthoxanthum horsfieldii is in fact very close to A. hookeri from the Himalayas, which differs in little more than its rather looser panicle and acute lemma lobes.

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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 22: 337, 339 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
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visit source
partner site
eFloras

Description

provided by eFloras
Plant loosely tufted, shortly rhizomatous. Culms 10–60 cm tall, 3–5-noded. Leaf sheaths glabrous or sparsely pilose; leaf blades loosely involute, 6–13 cm, 2–5 mm wide, glabrous or adaxial surface pubescent; ligule 2–4 mm, truncate. Panicle narrow, contracted, 2.5–7 cm; branches up to 5 cm; pedicels pubescent. Spikelets lanceolate-oblong, 4.3–5.5 mm; glumes unequal, glabrous, lower glume 2/3 to 3/4 length of upper glume, 1-veined, upper glume as long as spikelet, 3-veined; lower florets sterile, composed only of lemmas, ca. 4 mm, pilose on back, apex 2-lobed, lobes obtuse; first lemma awned from above middle, awn straight, 0.8–1.5 mm; second lemma awned from lower 1/4–1/3, awn geniculate, 4.5–6 mm; bisexual floret 2.5–3 mm, smooth, shiny; anthers 1.5–2 mm. Fl. Oct.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 22: 337, 339 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Distribution

provided by eFloras
Guizhou, Taiwan [India, Japan, Malaysia, New Guinea, Philippines, Thailand].
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 22: 337, 339 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Habitat

provided by eFloras
Mountains, grassy places, in sun or shade; 2500–3300 m.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 22: 337, 339 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Synonym

provided by eFloras
Ataxia horsfieldii Kunth ex Bennett, Pl. Jav. Rar. 8. 1838; Anthoxanthum formosanum Honda; A. horsfieldii var. formosa-num (Honda) Veldkamp; A. horsfieldii var. viridescens (Honda) Veldkamp; A. japonicum (Maximowicz) Hackel ex Matsumura subsp. luzoniense (Merrill) T. Koyama; A. luzoniense Merrill; A. viridescens Honda; Hierochloë horsfieldii (Kunth ex Bennett) Maximowicz.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 22: 337, 339 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras