Galium pogonanthum

Family	Rubiaceae
Scientific name	Galium pogonanthum Franchet & Savatier
Synonyms	Galium bungei Steudel var. setuliflorum (A. Gray) Cufodontis; Galium pogonanthum Franchet & Savatier forma interpositum Kitagawa; Galium setuliflorum (A. Gray) Makino; Galium trachyspermum A. Gray var. setuliflorum A. Gray
Common name	(Japanese common name) yama-mugura (ヤマムグラ, 山葎 [meaning: mountain weed]), me-yama-mugura (メヤマムグラ, [meaning: female mountain weed])
	(English common name) none
Distribution	(Japan) Honshu, Shikoku, Kyushu
	(Other nations) Korea
Habitat	Mountane wet forest
Chromosomal number	2n=22
Description	Plants electing 15-30cm tall, non hair. Leaves 4 verticillate (2 long leaves and 2 short leaves), each leaflet 1.5-2.5cm long, 2-3m wide, non hair (edge and lower sueface hairy). Flowers pedicelets 3-10mm long, pale yellow corollas ca. 1.5mm across, lower sueface of corolla is hairy, flowering in May to June. Fruits hairy. Perennial plants.
Reference	Galium pogonanthum
	Galium pogonanthum Franch. et Savat. f. interpositum Kitagawa
Note	Corolla (lower surface) of Galium pogonanthum Franchet & Savatier (var. pogonanthum) is hairy. Corolla (lower surface) of Galium pogonanthum Franchet & Savatier forma nudiflorum (Makino) Ohwi is non-hair.Japanese common name is me-yama-mugura (ケナシヤマムグラ, 毛無山葎 [meaning: non-hair  mountain weed]) Stem and leafes of Galium pogonanthum Franchet & Savatier var. trichopetalum (Nakai) H. Hara are hairy. Japanese common name is oh-yama-mugura (オオヤマムグラ, 大山葎 [meaning: large mountain weed]) or o-yama-mugura (オヤマムグラ, 雄山葎 [meaning: male mountain weed])

Photo by Mr. Ponpoko	Photo by Mr. Ponpoko	Photo by Mr. Ponpoko
May 2008 at mountain forest edge	May 2008 at mountain forest edge	May 2008 at mountain forest edge

Photo by Mr. Ponpoko	Photo by Mr. Ponpoko
May 2008 at mountain forest edge	May 2008 at mountain forest edge