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Taiwan Gramineae | Family List | Poaceae | Setaria

Setaria palmifolia (J. König.) Stapf, J. Linn. Soc. 42: 186. 1914; Hsu, Fl. Taiwan 5: 604, pl. 1448. 1978.


Setaria palmifolia

Credit: CC Hsu

Panicum palmifolium J. König, Naturforscher. 23: 208. 1788.

Perennials; clums caespitose, 60-100 cm tall, with short rhizome. Blade lanceolate, pubescent below, to 40 cm long, to 6.5 cm wide, plicate; sheath keeled, papillose-hispid; ligule a ring of hairs, 1.5- 2 mm long. Panicle loose, as much as 40 cm long, spikelets crowded, branches extending into bristles of 5-15 mm long; main axis nearly glabrous. Spikelets 3-4 mm long, lanceolate, acute; glumes and lower lemma with margins hyaline; lower glume 3-5-veined, ovate, 1/3-1/2 as long as spikelet; upper glume ovate, 5-7-veined, 1/2 to as long as spikelet; lower lemma 5-veined, acuminate, with a short incurved point, enclosing a hyaline lower palea; upper lemma ovate, faintly and transversely rugose, mucronate, shiny; anther ca.1.4 mm long.

ILAN: Kueishan, Hsu 870. Keelung: Keelung, Kuo 4266. TAIPEI: Wulai, Hsu 74; Yangmingshan, Hsu 132. MIAOLI: Senghsin, Hsu 1359. NANTOU: Chitou, Kuoh 10345; Sun Moon Lake, Hsu 1344. PINGTUNG: Kenting, Hsu 3935. TAITUNG: Chihpen, Hsu 972. HUALIEN: Tailuko, Suzuki 9505.

Tropics of the Old World. Taiwan, in shady places.

leaf surface 表面: (mix)mixed type with variable surface nodules

sclerenchyma 厚壁組織: (trstr)strand trichome-like

chlorenchyma 葉綠組織: (radia)cells radiate and lesser than
bundle sheath cell in width

bundle sheath 維管束鞘: (sk)single bundle sheath with
conspicuous chloroplast

buliform cells well developed 泡狀細胞發達: (bboth)appear both in adaxial and abaxial side

chlorenchyma cell number between two adjacent veins: 2

chloroplast form in bundle sheath 束鞘細胞內之葉綠體型式: (per)large amount and in peripheral site

mestome sheath 內束鞘細胞: (Xyms -)metaxylem pole adjacent with
outer bundle sheath

distance between two adjancent vein 脈間距: 87 micrometer

length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 3

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


Related Objects Image Gallery 
  • drawing (CC Hsu)
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