Rhododendron rubiginosum (Introduced- USA)

Rhododendron rubiginosum Franch., Bull. Soc. Bot. France 34: 282–283 1887. (syn: Azalea rubiginosa (Franch.) Kuntze; Rhododendron catapastum Balf.f. & Forrest; Rhododendron desquamatum Balf.f. & Forrest; Rhododendron rubiginosum var. ptilostylum R.C.Fang; Rhododendron squarrosum Balf.f.; Rhododendron stenoplastum Balf.f. & Forrest); . Tibet to China (Sichuan, Yunnan) and Myanmar as per POWO; . Rhododendron rubiginosum from UCBG-GS29082021-6: 3 images- 2 high res. Rhododendron rubiginosumFranch. Evergreen shrub native […]

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Rhododendron quinquefolium (Introduced- USA)

Rhododendron quinquefolium Bisset & S. Moore, J. Bot. 15: 292 1877. ; . Japan (Honshu, Shikoku) as per POWO; . Rhododendron quinquefolium from UCBG-GS29082021-5: 2 high res. images. Rhododendron quinquefolium Bisset & S.Moore A Japanese species naturalized in Oregon, a bushy species often grown in pots with leaves tend to be occurring in groups of five and white flowers […]

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Rhododendron roseum (USA)

Rhododendron roseum (Loisel.) Rehd., E.H.Wilson & A.Rehder, Monogr. Azaleas: 138 (1921) (syn: Azalea prinophylla Small; Azalea rosea Loisel.; Rhododendron canescens Porter; Rhododendron prinophyllum (Small) Millais; Rhododendron roseum f. albidum Steyerm.; Rhododendron roseum f. lutescens Rehder; Rhododendron roseum f. plenum Rehder); . N. Central & E. U.S.A.: Alabama, Arkansas, Illinois, Kentucky, Missouri, New Hampshire, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Vermont, Virginia, West Virginia as per POWO; . […]

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Rhododendron pachypodum (Introduced- USA)

Rhododendron pachypodum I. B. Balf. & W. W. Smith, Notes Roy. Bot. Gard. Edinburgh 9(44–45): 254–256 1916. (syn: Rhododendron pilicalyx Hutch.; Rhododendron rufosquamosum Hutch.; Rhododendron scottiatum Hutch.; Rhododendron supranubium Hutch.); . China (Yunnan) to NE. Myanmar: China South-Central, Myanmar as per POWO; . Rhododendron pachypodum from UCBG-GS29082021-3: 2 images. Rhododendron pachypodum I. B. Balfour & W. W. Smith Shrubs to small […]

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Rhododendron megeratum

Rhododendron megeratum I. B. Balf & Forrest, Notes Roy. Bot. Gard. Edinburgh 12(57–58): 140–143 1920. (syn: Rhododendron tapeinum Balf.f. & Farrer); . Arunachal Pradesh to China (NW. Yunnan): China South-Central, East Himalaya, Myanmar, Tibet as per POWO; . Common name: Megera Rhododendron . Rhododendron megeratum from UCBG-GS29082021-1: 2 images. Rhododendron megeratum Balf. f. & Forrest An interesting species of dwarf […]

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Rhododendron lutescens (Introduced- USA)

Rhododendron lutescens Franch., Bull. Soc. Bot. France 33: 235 1886. (syn: Rhododendron blinii H.Lév.; Rhododendron costulatum Franch.; Rhododendron lemeei H.Lév.); . China (W. Sichuan, Yunnan, Guizhou) as per POWO; . Rhododendron lutescens from UCBG-GS28082021-8: Rhododendron lutescens  Belonging to subsection triflora, is a straggling shrub from China. Photographed from University of California Botanical Garden, 24-4-2019.       . References: […]

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Rhododendron latoucheae (Introduced- USA)

Rhododendron latoucheae Franch., Bull. Soc. Bot. France 46: 210–211 1899. (syn: Azalea elliptica Kuntze; Rhododendron ellipticum Maxim.; Rhododendron ellipticum var. leptosanthum (Hayata) S.S.Ying; Rhododendron ellipticum var. tanakae (Hayata) S.S.Ying; Rhododendron latoucheae var. ionanthum (W.P.Fang) G.Z.Li; Rhododendron leiopodum Hayata; Rhododendron leptanthum Hayata; Rhododendron leptosanthum Hayata; Rhododendron tanakae Hayata; Rhododendron wilsoniae Hemsl. & E.H.Wilson; Rhododendron wilsoniae var. ionanthum W.P.Fang); . S. China, Nansei-shoto to Taiwan: China South-Central, China Southeast, Nansei-shoto, Taiwan as per POWO; . Rhododendron latoucheae […]

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Rhododendron augustinii (Introduced- USA)

Rhododendron augustinii Hemsl., J. Linn. Soc., Bot. 26(173): 19–20 1889. (syn: Azalea augustinii (Hemsl.) Kuntze; Rhododendron vilmorinianum Balf.f.); . Tibet to Central China: China North-Central, China South-Central, Tibet as per POWO; . Rhododendron augustinii from UCBG-GS28082021-1: 3 images. Rhododendron augustinii Hemsl. subsection Triflora A Chinese plant grown in University of California Botanical Garden, clicked on 21-4-2019.       […]

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Rhododendron arboreum subsp. zeylanicum

Rhododendron arboreum subsp. zeylanicum (Booth) Tagg, Species of Rhododendron 16 1930 (syn: Rhododendron zeylanicum Booth); . Sri Lanka as per CoL; . Rhododendron arboreum subsp. zeylanicum from UCBG-GS28082021-1: 3 images. Rhododendron arboreum subsp. zeylanicum (Booth) Tagg Syn: R. zeylanicum Booth Locally known as Maha Rath Mala, the tree is endemic to highlands of Sri Lanka. It is official Flower of Central […]

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Rhododendron bhutanense

Rhododendron bhutanense D. G. Long & Bowes Lyon, Notes Roy. Bot. Gard. Edinburgh 45: 327 1988 publ. 1989.; . East Himalaya as per POWO; . An alpine Rhododendron: 1 correct image as above. An alpine Rhododendron from Bumla pass- 14000ft, Arunachal pradesh You mean to say that the attached image is of Rhododendron bhutanense as per your reply herein. […]

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Rhododendron ferrugineum (Cultivated)

Rhododendron ferrugineum L., Sp. Pl. 392 1753. (syn: Azalea ferruginea (L.) Kuntze; Chamaerhododendron ferrugineum (L.) Bubani; Plinthocroma ferrugineum (L.) Dulac; Rhododendron intermedium Tausch); Austria, France, Germany, Switzerland, N-Spain (Pyrenees), Andorra, Italy, Slovenia, Croatia, Macedonia, Serbia & Kosovo, Albania as per Catalogue of Life;   SK 2624 21 May 2020 : 5 posts by 2 authors. […]

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Rhododendron austrinum (USA)

Rhododendron austrinum (Small) Rehder, Stand. Cycl. Hort. 6: 3571 1917. (syn: Azalea austrina Small); USA (Alabama, Florida, Georgia, Mississippi) as per Catalogue of Life; Garden Plant for ID : Orange Flowers : Atlanta, Georgia : 17JAN19 : AK-34 : 11 posts by 5 authors. Attachments (5) Seen in the last week of Oct,18. Could this […]

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Rhododendron praetervisum (Cultivated- USA)

Rhododendron praetervisum Sleumer, Blumea 21: 376 1973. ; Borneo (Sabah) as per Catalogue of Life;   Plant for ID : Conservatory : Atlanta Botanical Garden : Atlanta, Georgia : 27NOV18 : AK-22 : 7 posts by 2 authors. Attachments (2) Plant seen inside the Conservatory with purple flowers. Have no idea what they can be. […]

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Rhododendron lepidotum ?

Rhododendron lepidotum ?;   SK1194 11 JUNE 2018 : 8 posts by 2 authors. Attachments (4) Location: Sandakphu, India Date: 13 May 2018 Altitude: 12000 ft. Habit : Wild Rhododendron sp. ?? Pl. check with images at Rhododendron lepidotum Wall. ex G. Don and http://www.asianflora.com/Ericaceae/Rhododendron-lepidotum.htm  Could not decide without flowers, however ID looks correct ! It does not […]

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Rhododendron triflorum

Rhododendron triflorum Hook. f., Rhododendron Sikkim Himalaya 2: , pl. 19 1851. (syn: Azalea triflora (Hook. fil.) Kuntze; Rhododendron deflexum Griff.);   S-Tibet, Myanmar [Burma] (Kachin), Darjeeling, Chumbi, NE-India, Bhutan, Sikkim, Nepal as per Catalogue of Life; Common name: Three-Flowered Rhododendron Evergreen or semi-deciduous shrub 1-5m; branchlets minutely scaly. Leaves ovate to lanceolate, 3.5-6.5×1.5-3cm, acute , […]

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Rhododendron grande

Rhododendron grande Wight, Calcutta J. Nat. Hist. 8: 176 1847. (Syn: Azalea grandis (Wight) Kuntze; Rhododendron argenteum Hook. f.; Rhododendron longifolium Nutt.; Rhododendron wilsonii Nutt. ex Hook.; Waldemaria argentea (Hook. f.) Klotzsch); S-Tibet, Nepal, Sikkim, Bhutan, N-India, Darjeeling as per Catalogue of life;   What is the botanical name of White Rhododendron ? : 7 […]

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Rhododendron nivale subsp. nivale

Rhododendron nivale Hook. f., Rhododendron Sikkim Himalaya 3: , pl. 26(B) 1851. (syn: Azalea nivalis (Hook. fil.) Kuntze; Rhododendron paludosum Hutchinson & F. K. Ward); Common name: Dwarf Snow Rhododendron China (S-Qinghai), Tibet, Nepal, Bhutan, Sikkim, Chumbi as per Catalogue of Life; Compact dwarf shrub 10-30cm; shoots scaly otherwise glabrous. Leaves ovate or broadly ellipyic, […]

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Rhododendron arboreum ?

Rhododendron arboreum ?; . VoF Week :: DV :: 01 AUG 12 – 0904 :: ¿ Rhododendron ? along Govind Ghat – Ghangaria trail: 1 AUG 12 Govind Ghat – Ghangaria trail … about 6900 ft Habitat: mountain slope Habit: large shrub, rather small tree, about 6 – 8 m high … will be happy […]

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Rhododendron arboreum var. cinnamomeum

Rhododendron arboreum var. cinnamomeum Wall. ex Lindl., Edwards’s Bot. Reg. 23: , pl. 1982 1837. (syn: Rhododendron arboreum subsp. campbelliae (Hook. fil.) Tagg; Rhododendron arboreum subsp. cinnamomeum (Wall. ex Lindl.) Tagg; Rhododendron arboreum var. cinnamomeum (Wall. ex Lindl.) W.K. Hu; Rhododendron campbelliae Hook. fil.; Rhododendron campbelliae Hook. fil.) ?;    S-Tibet, E-Nepal, NE-India, Darjeeling, Vietnam as […]

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Rhododendron formosum var. inaequale

Rhododendron formosum Wall. var. inaequale C. B. Clarke, J. D. Hooker, Fl. Brit. India 3:473. 1882 “inaequalis” (syn: (≡) Rhododendron inaequale (C. B. Clarke) Hutch.);      Rhododendron sp. for ID : 5 posts by 2 authors. Attachments (1). Location : Phawngpui (ca.2,000 m.), Mizoram. Date : 12-04-2012. Habit : A small tree or shrub. […]

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