포아풀속 종 검색표와 비교표 http://blog.daum.net/daehyo/7812002
학명 : Poa sphondylodes Trin.
분류 : Poaceae/ Pooideae/Poeae/Poa
사진: 2020.06.20 영종도 선녀바위
아래: 2021.04.30 도봉구
최상위 엽신이 엽설 부근에서 90 이상으로 젖혀진다
화서의 가지는 한 마디에서 3-6개가 나온다
화서 가지는 거칠다
줄기의 마디는 3-4개
소수는 3-7개의 소화로 구성
소화 기반에 털이 있다
FOC
Poa sphondylodes Trinius in Bunge, Enum. Pl. China Bor. 71. 1833.
硬质早熟禾 ying zhi zao shu he
(설명)
Culms loosely tufted, (15–)30–50(–70) cm tall, erect or obliquely ascending, firm and robust, scabrid below inflorescence, rarely smooth, nodes (2or )3 or 4, uppermost up to 1/3(–1/2) way up. Shoots extravaginal. Leaf sheaths scabrid, much shorter than internodes, usually longer or equal to blade; blade flat and usually firm, (4–)6–12 × 0.15–0.25(–0.3) cm; ligule (2–)3–5(–10) mm. Panicle narrow and dense, (4–)6–10 cm, branches erect, 2–5 per node, basal ones 1/6–1/2 as long as panicle with spikelets crowded near branch base. Spikelets lanceolate, sometimes very narrow and elongated, green or grassy yellow, 3.5–5(–10) mm, florets 2–5(–11); rachilla glabrous or warty; glumes, narrowly lanceolate, unequal, 2.5–4(–4.5) mm; lemma lanceolate, 3–4 mm; callus webbed or glabrous.
(생육지와 분포)
Open sandy ground, frequently on river banks, meadows among scattered thickets on slopes, grassy places on sunny slopes; 100–3200 m. Anhui, Hebei, Heilongjiang, Henan, Jiangsu, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Zhejiang [Russia (Far East), Japan, Korea].
(보충)
Poa sphondylodes is treated here as a polymorphic species with a broad ecological amplitude and many ecotypes. Its appearance depends on the environment, varying from quite mesomorphic to almost xeromorphic.
Tzvelev (Zlaki SSSR, 472. 1976) and Probatova (in Tzvelev, Sosud. Rast. Sovetsk. Dal'nego Vostoka 1: 283. 1985) considered this species to be synonymous with Poa versicolor subsp. ochotensis, but the type of P. sphondylodes and other gatherings so named differ from that subspecies in their broader leaf blades and quite soft habit. The most mesomorphic populations of P. sphondylodes seem to be confused with P. palustris, but the typical forms differ from the latter species as follows: uppermost node in lower part of culm; ligule of uppermost leaf much longer, 3–5(–8) mm; panicle usually with very short branches, longest branches at 2nd node of panicle; spikelets proximally crowded on branches. Specimens with rather more lax panicles and longer branches are common in C China.
(종하 분류)
1. Spikelets 6–10 mm.
.................................. var. subtrivialis
1. Spikelets 3.5–5 mm
2. Panicle branches with spikelets proximal.
................................... var. sphondylodes
2. Panicle branches with spikelets along distal half
3. Ligule 2–3 mm, palea sometimes pubescent between keels
........................................ var. erikssonii
3. Ligule 3–5 mm, palea never pubescent between keels.
........................................ var. macerrima
www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200026050
Poa sphondylodes var. sphondylodes
硬质早熟禾(原变种) ying zhi zao shu he (yuan bian zhong)
(학명 이명)
Poa kelungensis Ohwi, Acta Phytotax. Geobot. 4: 60. 1935; P. palustris Linnaeus var. strictula (Steudel) Hackel; P. sphon-dylodes var. kelungensis (Ohwi) Ohwi; P. strictula Steudel.
(설명)
Panicle quite dense, branches short, erect, with spikelets crowded from base. Spikelets 3.5–5 mm.
(생육지와 분포)
Open sandy ground, frequently on river banks, meadows among scattered thickets on slopes, grassy places on sunny slopes; 100–2500 m. Anhui, Hebei, Heilongjiang, Henan, Jiangsu, Jilin, Liaoning, Nei Mongol, Sichuan, Taiwan [Japan, Korea, Russia (Far East)].
(보충)
The type and other gatherings of Poa kelungensis, which are quite soft and with the uppermost internode almost equal to its blade, closely resemble the type of P. sphondylodes. Gatherings from sandy beaches are quite different from typical P. sphondylodes, but those from shady forests are closely allied and form intermediate populations. The extreme form probably represents a discrete (maybe apomictic) population, which cannot be treated without more research. The type of P. strictula and most gatherings so named represent a mesomorphic form of P. sphondylodes.
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=250071220
세밀화
