성긴포아풀
| 과 | 벼과(Poaceae) 115속 (피자식물문/백합강/사초목) |
|---|---|
| 속 | 포아풀속(Poa) 31종 |
| 국명 | 성긴포아풀 |
| 학명 | Poa tuberifera Faurie ex Hack. |
| 형태 |
|
| 개요 | Poa tuberifera HABIT Perennial; culms solitary. Butt sheaths pallid. Culms erect; 15?30 cm long; 0.5?0.8 mm diam.; 2?4 -noded; swollen at the base; forming an ovoid corm. Leaf-sheaths tubular for much of their length; with 0.66?0.8 of their length closed; smooth. Ligule an eciliate membrane; 1 mm long; white; truncate, or obtuse. Leaf-blades 5?10 cm long; 0.7?2 mm wide. Leaf-blade apex acute. INFLORESCENCE Inflorescence a panicle; comprising 4?15 fertile spikelets. Panicle open; ovate; effuse; 2?15 cm long; 1.5?4 cm wide; bearing few spikelets. Primary panicle branches spreading; 1?2 -nate; 1?5 cm long; bearing 1?5 fertile spikelets on each lower branch. Panicle branches capillary; smooth. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 8?10 mm long; smooth. FERTILE SPIKELETS Spikelets comprising 2?4 fertile florets; with diminished florets at the apex. Spikelets elliptic, or ovate; laterally compressed; 4.5?6 mm long; 2?3 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 0.8?1.5 mm long; smooth. Floret callus glabrous. GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 2.2?2.5 mm long; 0.75?0.9 length of upper glume; membranous; much thinner on margins; 1-keeled; 1 -veined. Lower glume primary vein smooth. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume ovate; 2.5?3 mm long; 0.75?0.9 length of adjacent fertile lemma; membranous; with hyaline margins; 1-keeled; 3 -veined. Upper glume primary vein smooth. Upper glume apex acuminate. FLORETS Fertile lemma ovate; 3?3.5 mm long; 1.4?1.6 mm wide; membranous; much thinner above; much thinner on margins; keeled; 5 -veined. Lemma surface pubescent; hairy below; hairy on veins. Lemma apex acute. Palea 2.2?2.8 mm long. Palea keels scabrous; ciliate; adorned with hairs below. Apical sterile florets resembling fertile though underdeveloped. FLOWER Lodicules 2; membranous. Anthers 3; 0.6?0.8 mm long. FRUIT Caryopsis with adherent pericarp. Hilum punctiform. DISTRIBUTION Asia-temperate: eastern Asia. NOTES Poeae. Koyama 1994. |
| 참고문헌 | 한국 미기록 벼과식물: 성긴포아풀 정수영 ( Su Young Jung ) , 지성진 ( Seong Jin Ji ) , 양종철 ( Jong Cheol Yang ) , 박수현 ( Soo Hyun Park ) , 이유미 ( You Mi Lee ) |
