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Taiwan Gramineae | Family List | Poaceae | Agrostis

Agrostis clavata Trin. in Spreng., Neue Entd. 1: 55. 1821. Veldk., Blumea 28(1): 209. 1982.


Agrostis clavata

Credit: cs kuoh

Agrostis matsumurae Hack. ex [Matsjmura, Bot. Mag. Tokyo 11: 445. 1897, nomen] Honda, J. Sc. Imp. Univ. Tokyo 3, 3(1): 191. 1930.
Agrostis clavata Trin. subsp. matsumurae Tateoka, Bull. Nat. Sc. Mus. Tokyo 11: 161. 1968; Hsu, Fl. Taiwan 5: 398. 1978.
Agrostis formosana Ohwi, Bot. Mag. Tokyo 55: 354. 1941.
Agrostis clavata Trin. var. nukabo Ohwi, Bot. Mag. Tokyo 55: 356. 1941.
Agrostis exarata Trin. subsp. clavata (Trin.) Koyama, Grass. Jap. Neighb. Reg. 196. 1987.

Tufted annual or perennial, then with a few cataphylls at base, without rhiaome or stolons, branchiing at base, glabrous. Culms up to 60 cm long. Sheaths smooth; uppermost ligules quadrangular, 0.75-2 mm long, apex rounded, reose; bldes erect, flat, up to 18 cm long, 3.5 mm wide, smooth to scaberulous. Panicle contracted, somewhat lobed and rather densely spikeld, 8.5-19 cm long, 1-3 cm wide, branches usually scaberulous, lowermost 2-8 together, longest 4.6-7.5 cm long, the shorter often spikeled nearly to base. Spikelets 1.6-2.25 mm long. Glumes unequal, the lower longest, ovate-lanceolate. Rachilla process absent. Lemma 1.25-1.6(-1.7) mm long, 0.6-0.82 times as long as as the lower glume; acutish, 5-nerved, Trichodium-net well-developed; callus oblique, glabrous or with an occasional up to 0.1 mm long hair; awn absent. Palea 0.2-0.5 mm long, 0.13-0.36 times as long as the lema. Anthers 0.2-0.5(-0.55) mm long, 0.15 times as long as the lemma.

TAIPEI: Huanjipiliao, Kuoh 14397. HSINCHU: Tapachienshan, Hsu 12621. TAICHUNG: Pahsienshan, Hsu 424. NANTOU: Chitous, Hsu s. n. July 15, 1954. CHIAYI: Mt. Alishan, Kuoh 7454; Hsu s. n. Setpt. 28,1967. KAOHSIUNG: Kuanshan, Fu s. n. July 12, 1935.

Distributed in N. Europe to Sachalin, Japan, Taiwan.

midrib 中肋: (la)large:several vascular bundles

leaf surface 表面: (mid)upper surface with middle notch
between the veins

sclerenchyma 厚壁組織: (boscl)(bostr)on both sides of veins as
strand or girder

chlorenchyma 葉綠組織: (inrad)somewhat radiate and equal or
slightly large
than bundle sheath cell in width

bundle sheath 維管束鞘: (nke)bundle sheaths without chloroplast

buliform cells not well developed 泡狀細胞不發達: (irreg)epidermal cells irregular in size

chlorenchyma cell number between two adjacent veins: 7

chloroplast form in bundle sheath 束鞘細胞內之葉綠體型式: (not)no chloroplast

mestome sheath 內束鞘細胞: (Xyms+)metaxylem pole adjacent with
mestome sheath

distance between two adjancent vein 脈間距: 160 micrometer

chlorenchyma cell shape in LS 葉綠細胞縱面形狀: non -lobed


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  • specimen (cs kuoh)
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  • Image/GIF (CC Hsu, 1975 Taiwan Grasses)
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  • Image/JPEG (CC Hsu, 1975 Taiwan Grasses)
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  • Image/JPEG (CS Kuoh)
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    Flora of China  
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