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Taiwan Gramineae | Family List | Poaceae | Triticum

Triticum aestivum Linn., Sp. Pl. 1:85. 1753. Hsu, Fl. Taiwan 5: 460. 1978; Koyama, Grass. Jap. Neighb. Reg. 71. 1987.


Triticum aestivum
leaf cross section

Credit: cs kuoh

Cultivated annuals or biennials; culms tufted, 6-7-noded; ligule short, membranous. Spike up to 10 cm long, rachis 2-3 mm long. spikelets 2-6-flowered, 10-15 mm long, upper ones sterile; rachilla about 1 mm long; glumes coriaceous, slightly membranous near the margins, ovate, strongly keeled on the upper half, 7-9-nerved, usually with tessellate nerves on the upper part; palea 2-keeled, narrowly winged, as long as the lemma; anthers 1.8-2 mm long. Caryopsis 5 mm long, hairy at the apex, enclosed between the lemma and palea, hilum linear; embryo 1/4 as long as the grain.

TAIPEI: Taipei, Kao s.n. March 20, 1958. TAICHUNG: Salu, Kuoh 10034.

Widely cultivated all over the world.

midrib 中肋: (sm)small:with one vascular bundle

leaf surface 表面: (sha)upper surface with shallow 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: (palis)differentiate to palisade and
sponge tissue

bundle sheath 維管束鞘: (nks)bundle sheaths with
small amount of chloroplast

buliform cells well developed 泡狀細胞發達: mainly appear in adaxial side

no small vein under buliform cells泡狀細胞下無小脈: (fanfu)bulliform set fan shaped,
cells similar 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: (lit)with a little of chloroplast

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

distance between two adjancent vein 脈間距: 266 micrometer

length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 7

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


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