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Species
Sorghum
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This species is closely related to Sorghum halepense, but is diploid, is larger with a more profuse panicle, and has a different geographic distribution. It is sometimes used for fodder. A form with larger (4.5–5 mm) sessile spikelets, S. propinquum var. siamense (Piper) Snowden, occurs from S India to Thailand, but has not been found in China.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200026341 |
Cultivated in Taiwan.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1050&taxon_id=200026341 |
Robust annuals or perennials. Leaves: lamina linear. Inflorescence a large terminal panicle, the branches bearing short racemes; internodes and pedicels filiform; spikelets of each pair different. Sessile spikelet dorsally flattened; lower glume ± coriaceous, broadly convex across the back, becoming 2-keeled and narrowly winged near the tip; lower floret reduced to a hyaline lemma; upper lemma hyaline, 2-dentate with a glabrous awn from the sinus. Pedicellate spikelet male or barren, narrower than the sessile and awnless.
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Rights holder/Author | Mark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe |
Source | http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=228 |
Barcode of Life Data Systems (BOLD) Stats
Specimen Records:81
Specimens with Sequences:98
Specimens with Barcodes:79
Species:12
Species With Barcodes:12
Public Records:23
Public Species:4
Public BINs:0
Distributed in the Malay Peninsula, China and the Philippines.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1050&taxon_id=200026341 |
Culm solid, erect, about 2.5 mm in diameter. Blade linear, up to 13 mm wide; ligule about 2 mm long, chartaceous, ciliate on the backside. Spikelets paired, dimorphic; the upper pedicelled, lanceolate, 1/2 the width of the sessile spikelet, pubescent all over; the lower sessile, broadly lanceolate, about 4 mm long. Glumes coriaceous, as long as the spikelet; the lower glume broadly lanceolate, 2-keeled, shortly bristled along the keels, mucronate at the apex, 13-nerved, tessellate nerved, pubescent on the back and margins; the upper glume lanceolate, boat-shaped, margins inrolled, fimbriate along upper margins; tessellate-nerved. Upper floret membranous; lemma about 3.5 mm long, lanceolate, margins folded and fimbriate on upper part; palea lanceolate, fimbriate along margins. Lower floret reduced to a lemma, deltoid-lanceolate, about 3 mm long, 1-nerved, thickened at the end of nerves, margins fimbriate, mucronate at the apex.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1050&taxon_id=200026341 |
Perennial, loosely tufted with a few stout rhizomes. Culms 1.5–3 m tall, up to 1 cm in diam., many-noded; nodes puberulous. Leaf sheaths glabrous, ciliate at mouth and margins; leaf blades yellowish green, linear or linear-lanceolate, 40–90 × 3–5 cm, glabrous, midvein robust, margins ciliolate; ligule 0.5–1 mm, puberulous. Panicle open, ovate or broadly ovate, 30–55 cm; primary branches in whorls of 3–6; lower part bare, upper part branched, branches tipped by racemes; racemes fragile, composed of 3–7 spikelet pairs. Sessile spikelet ovate, 3.8–4.5 mm; callus obtuse, pubescent with pale hairs; lower glume subleathery, pale or purple-tinged, thinly pilose, 9–13-veined, veins distinct in upper part, apex acute to apiculate or tridenticulate; upper lemma acute or emarginate, awnless, rarely with short awn. Pedicelled spikelet staminate, linear-lanceolate, 4–5.5 mm, yellowish to pale purple. Fl. and fr. summer–autumn. 2n = 20.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200026341 |
Andropogon propinquum Kunth, Rev. Gram. 1: Suppl. 40. 1830
. Sorghum halepense var. propinquum (Kunth) Ohwi, Bot, Mag. Tokyo 55: 550. 1941.
Holcus halepensis var. genuinus Honda, Bot. Mag. Tokyo 40: 99. 1926, Monogr. 333. 1930.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1050&taxon_id=200026341 |
Andropogon propinquus Kunth, Enum. Pl. 1: 502. 1833; A. halepensis (Linnaeus) Brotero var. propinquus (Kunth) Hackel; A. sorghum (Linnaeus) Brotero var. propinquus (Kunth) Hackel.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200026341 |