Therorhodion glandulosum

Standley ex Small in N. L. Britton et al.

in N. L. Britton et al., N. Amer. Fl. 29: 45. 1914 ,.

Common names: Glandular Kamtchatka rhododendron
Synonyms: Rhododendron camtschaticum subsp. glandulosum (Standley ex Small) Hultén Rhododendron camtschaticum var. glandulosum (Standley) B. Boivin Rhododendron glandulosum (Standley ex Small) Millais Therorhodion camtschaticum var. pumilum (E. A. Busch) T. Yamazaki
Treatment appears in FNA Volume 8. Treatment on page 454.

Shrubs to 1 dm. Stems multicellular, eglandular-hairy (hairs unbranched) and stipitate-glandular-hairy, glabrate with age. Leaves often clustered toward distal portions of shoots; blade elliptic to obovate, sometimes ovate, 1–3.5 × 0.4–1.5 cm, thin, margins ciliate (hairs stipitate-glandular), plane, apex rounded to obtuse or acute, mucronate, surfaces glandular-hairy. Floral bud-scales (and leaflike inflorescence bracts) stipitate-glandular-hairy. Inflorescences 2–3-flowered, sometimes flowers solitary; axis elongate. Pedicels 1–4.7 cm, stipitate-glandular-hairy; bracteoles 2, green, smaller than leaves. Flowers opening after shoot development, appearing to terminate leafy shoots due to their leaflike bracts; calyx lobes 7–16 mm, stipitate-glandular-hairy; corolla purple, upper 3 lobes with darker spots, 16–25 mm, margins smooth, ± glabrous on outer surface, tube ± absent due to slit between lower 2 lobes, lobes 11–24 mm; stamens unicellular-hairy proximally. Capsules 5–11 mm, unicellular-hairy. 2n = 24, 26.


Phenology: Flowering summer.
Habitat: Arctic and alpine meadows, tundra, balds, moraines, and subalpine woods
Elevation: 0-1500 m

Distribution

V8 895-distribution-map.gif

Alaska, e Asia (Japan), e Asia (Russian Far East)

Discussion

Therorhodion glandulosum is found on the Seward Peninsula and in the lower Yukon River valley.

Selected References

None.

Lower Taxa

None.

"/3" is not declared as a valid unit of measurement for this property.

... more about "Therorhodion glandulosum"
Kathleen A. Kron +  and Walter S. Judd +
Standley ex Small in N. L. Britton et al. +
elongate +
furrowed +  and smooth +
not flaky +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
ovate;elliptic;obovate +
membranous;chartaceous +
thin;0.4cm;1.5cm +
stipitate-glandular-hairy +
0.7 cm7 mm <br />0.007 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
unicellular-hairy +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Glandular Kamtchatka rhododendron +
Alaska +, e Asia (Japan) +  and e Asia (Russian Far East) +
0-1500 m +
undifferentiated +
fusiform +
stipitate-glandular-hairy +
pendulous +  and erect +
Arctic and alpine meadows, tundra, balds, moraines, and subalpine woods +
unicellular +, eglandular +, glandular +, long-stipitate +  and simple +
terminal +  and axillary +
deciduous +  and persistent +
11mm +  and 24mm +
serrulate +  and entire +
parietal +, axile +  and placentation +
tenuinucellate +  and unitegmic +
stipitate-glandular-hairy +
1 cm10 mm <br />0.01 m <br /> (4.7 cm47 mm <br />0.047 m <br />) +
reduced +
not sticky +
Flowering summer. +
4-5-carpellate +
in N. L. Britton et al., N. Amer. Fl. +
reduced +
not +  and winged +
distinct +
ellipsoidal +
unicellular-hairy +
multicellular +
procumbent +  and sprawling +
creeping +  and sprawling +
peltate +  and capitate +
straight +
glandular-hairy +
Rhododendron camtschaticum subsp. glandulosum +, Rhododendron camtschaticum var. glandulosum +, Rhododendron glandulosum +  and Therorhodion camtschaticum var. pumilum +
Therorhodion glandulosum +
Therorhodion +
species +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
heterotrophic +, autotrophic +  and mycotrophic +