Family: Poaceae
Bothriochloa
Citation:
Kuntze, Rev. Gen. Pl. 2:762 (1891).
Synonymy: Not Applicable Common name: Blue-grasses.
Description:
Tufted perennials; leaf blades usually flat, ligule usually membranous.
Inflorescence of spike-like racemes arranged in a panicle or digitately; spikelets 2-flowered, in pairs, the sessile one fertile, the pedicellate one sterile or male, the terminal spikelets in three's, pedicels and articles of the rhachis silky-villous with a longitudinal translucent furrow visible when illuminated from behind or below, 1 or 2 of the lowest sessile spikelets sterile and awnless although resembling the fertile spikelets and persisting at the summit of the stem for some time after the upper spikelets have fallen; glumes of sessile spikelet obtuse, flat or concave, with 2 prominent marginal minutely ciliolate or scabrous keels and often with a depression or pit in the back, the second glume boat-shaped, about as long, acute, more or less hairy, 3-nerved, with a blunt protuberant keel or mid-nerve and enclosing the small hyaline first lemma and the short narrow second (fertile) lemma with a terminal awn rising from the toothless summit, the column loosely twisted; palea minute or absent.
Distribution:
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About 20 species from warm parts of the world.
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Biology:
No text
Key to Species:
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1. Nodes more or less pubescent; pedicellate spikelets sometimes male, with 2 glumes and with or without a sterile lemma; anthers yellow; racemes 6 to many |
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2. Racemes at the base of the panicle shorter than the long common rhachis |
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B. bladhii 1. |
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2. Racemes much longer than the common rhachis |
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B. ewartiana 2. |
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1. Nodes glabrous; pedicellate spikelets sterile, with usually only 1 glume; anthers purple; racemes usually 2-5 |
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B. macra 3. |
Author:
Not yet available
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