Rhododendron ripense

Billeder af Rhododendron ripense

Beskrivelse

R. ripense (Tsutsusi). Opret voksende spinkel stedsegrøn busk til 1-2 m. Bladene er lancetformede fladtrykt-hårede. Blomsterne er åbent tragtformede og sidder 1-3 sammen og kommer i maj. De er fra hvide til rødviolette farvede. Vildtvoksende i Japan (Honshu, Shikoku og Kyushu) fra 50 – 500 m. Kan klare det danske klima på en beskyttet plads. I Japan kaldes den: Rhododendron macrosepalum forma leucanthum.
Hans Eiberg

● R. ripense frø. Foto: Hans Eiberg

---

Ikke beskrevet i ARS og Flora of China
RBGE Herbarium; R. ripense (only text)

---

Trees and Shrubs Online; R. ripense Makino

Shrub, 1–2 m; young shoots and petioles densely covered with loosely adpressed flattened bristles that are intermixed with softer grey-brown, sometimes gland-tipped hairs. Leaves of two kinds; spring leaves deciduous, 3.5–5 × 1.5–2 cm, ovate-lanceolate, apex mucronate, both surfaces covered with adpressed reddish grey pilose hairs, especially on the midrib; summer leaves 1.5–3 × 0.5–1 cm, oblanceolate. Pedicels covered with soft spreading pilose hairs, sometimes with glandular and flattened bristles. Flowers 1–3 per inflorescence; calyx to 15 mm; corolla white or rose-pink to red, widely funnel-shaped, 25–50 mm; stamens 10; ovary covered with bristles, style glabrous. Flowering April-May. Royal Horticultural Society (1997)

Distribution  Japan Honshu, Shikoku, Kyushu

Habitat 50–500 m

RHS Hardiness Rating H4

Conservation status Least concern (LC)

This species is closely allied to R. stenopetalum but differs in the smaller leaves and adpressed-hairy shoots, etc.

R. mucronatum, with white flowers, is presumed to be an artificial hybrid derived from R. ripense and R. stenopetalum. Royal Horticultural Society (1997)