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| 資料編號: | HK-1848 |
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| 中文名稱: | 山雞穀草 |
| 學名: | Acroceras tonkinense [找同屬植物] |
| 植物科名: (APG新系統) | POACEAE禾本科 [找同科植物] |
| 標室舊系統 | POACEAE禾本科[找同科] |
| 生長習性: | 草本 |
| 原生/外來: | 香港原生植物 |
| 圖片花色: | purple |
| 資料更新: | 20221020 12:08:35 pm |
| 備註: 深圳植物誌: 多年生草本。稈較粗硬，下部匍匐，節上生根，直立部分高0. 6-1m，節上密被白色長硬毛。葉鞘常短於節間，被疣基長硬毛或無毛；葉舌厚膜質，長約1mm，先端鈍圓；葉片披針形，長7-23cm，寬0. 8-2. 8cm，無毛或下面疏被長硬毛，主脈明顯，脈間具細橫脈，邊緣增厚呈皺波狀並具刺毛，先端長漸尖。 圓錐花序開展，稀疏，長15-25cm，寬5-10cm；主軸粗壯，具棱，粗糙；分枝直立，通常數枚簇生；小穗孿生或上部者單生，長5-5. 5mm，孿生者1具長柄，1具短柄，長柄者柄長0. 5-1. 5cm，短柄者柄長約2mm；第一穎闊橢圓形，長約為小穗的3/4，具5脈，第二穎與第一外稃同形，均等長於小穗，具5脈，先端稍增厚，呈小的雞頭狀，第一內稃透明膜質，狹窄，具2脈，第二外稃稍短於小穗，平滑，光亮，先端增厚呈小的雞頭狀，邊緣內捲，包著同質的第二內2稃，第二內稃具2脊，先端二淺裂，邊緣膜質。穎果橢圓體形，長約3. 5mm。花期：花、果期：6-11月。 FOHK: Perennial. Culms 65(–100) cm tall, nodes densely pubescent with soft white hairs. Leaf sheaths glabrous or with tubercle-based hairs, one margin tuberculate-ciliate; leaf blades lanceolate, 10–20 × 1–3 cm, glabrous or abaxial surface pilose, margins thickened, pectinate-ciliate at base, scabrous, midvein prominent abaxially, apex narrowly acuminate; ligule ca. 1 mm, obtuse. Panicle open, 15–25 × 5–10 cm, axis and branches stiff, scabrous; racemes ascending, with secondary branching; spikelets widely spaced, paired or single in upper part. Spikelets 5–5.5 mm; lower glume broadly elliptic, 3/4 spikelet length, 5-veined; upper glume and lower lemma as long as spikelet, 5-veined, apex slightly thickened; lower palea hyaline, narrow; upper lemma smooth, shining, slightly shorter than spikelet, apex thickened and protruding. Locality: Tai Mo Shan | |
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