Rhododendron adenopodum
Beskrivelse af Rhododendron adenopodum
Beskrivelse
R. adenopodum (Argyrophylla). Ex. R. adenopodum transferred from Pontica because of stipate glandular ovaries and shallowly lobed corolla, distribution like those of Argyrophylla (Ben Hall). Buske op til 3 m. Blomstring i april-maj og kronen er bleg rosa undertiden plettede. Langsomtvoksende. Lange mørke grønne blade med gråt fladt indumentum på bladundersiden. Vokser i åbne skoven fra 1500 – 2200 m. i Kina. Mange planter mærket R. adenopodum af gammel introduktion med meget lange blade (L:B=5) er ifølge Jens Nielsen ikke den rigtige art. R. youngae (synonym) har bredere blade (se RBGE herbarium) så mon ikke det er den der har skabt forvirring.
Hans Eiberg
● R. adenopodum frø. Foto: Kurt Hansen
Synonyms eller beslægtet art
R. simiarum Hance ssp. youngiae (W. P. Fang) D. F. Chamberlain; R. youngiae W. P. Fang.
Flora of China
Shrubs, evergreen, 2-3 m tall; bark gray; young shoots with a dense grayish tomentum and a few glandular hairs. Petiole 10-15 mm; leaf blade leathery, obovate-elliptic or long-obovate, 6-13 × 2-4 cm; base cuneate; apex acuminate, shortly curved-cuspidate; abaxial surface indumentum grayish to pale fawn; adaxial surface glabrous when mature; midrib prominent abaxially, grooved adaxially; lateral veins 10-12-paired, inconspicuous. Inflorescence a lax racemose corymb, 4-8-flowered; rachis 10-15 mm, with a fawn-tomentum. Pedicel 1-2.5 cm, with glandular hairs; calyx lobes 5, 3-5 mm, membranous glandular on the back, triangular-ovate, margin glandular-ciliate; corolla funnel-campanulate, pale rose, usually crimson-spotted, 4-4.5 cm, puberulent within at the base, outside glabrous, lobes 5, orbicular, ca. 1.5 × 2 cm; stamens 10, unequal, 1.5-3 cm, filaments densely hairy in lower 1/4; ovary ovoid, ca. 5 mm, ca. 5-6-locular, densely clad with long-glandular hairs; style slender, glabrous. Capsule oblong-cylindric, ca. 15 × 7 mm, glandular. Fl. Apr-May, fr. Jul-Aug. Thickets, mountain slopes, roadsides; 1000-2200 m. Chongqing, W Hubei.