Northeastern Asian Flora
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Sorbus commixta Hedl.   (redirected from: Pyrus micrantha var. macrophylla Cardot)
Family: Rosaceae
[Aria japonica f. calocarpa (Rehder) Yonek., morePyrus micrantha var. macrophylla Cardot, Sorbus americana subsp. japonica (Maxim.) Kitam., Sorbus americana var. rufoferruginea (C.K.Schneid.) Kitam., Sorbus amurensis f. latifoliolata (Nakai) W.T.Lee, Sorbus amurensis var. lanata Nakai, Sorbus amurensis var. latifoliolata Nakai, Sorbus amurensis var. rufa Nakai, Sorbus amurensis var. rufescens Nakai ex T.Mori, Sorbus aucuparia var. japonica Maxim., Sorbus chionophylla Nakai, Sorbus commixta f. chionophylla (Nakai) Sugim., Sorbus commixta var. pilosa Nakai, Sorbus commixta var. rufoferruginea C.K.Schneid., Sorbus commixta var. sachalinensis Koidz., Sorbus commixta var. wilfordii (Koehne) Sugim., Sorbus heterodonta Koehne, Sorbus japonica var. calocarpa Rehder, Sorbus macrophylla (Cardot) Koidz., Sorbus nikkoensis Koidz., Sorbus pruinosa Koehne, Sorbus reflexipetala Koehne, Sorbus rufoferruginea (Shirai ex C.K.Schneid.) C.K.Schneid., Sorbus serotina Koehne, Sorbus wilfordii Koehne, Sorbus yesoensis Nakai]
Sorbus commixta image
Chin Sung Chang
  • Japan Flora
  • Korea Flora
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Japan Flora: Tree with glabrous or thinly pubescent young branchlets; leaves pinnate, 15-20 cm. long, the petioles 3-5 cm. long, glabrous or nearly so, the leaflets 多-15, lanceo­late to narrowly ovate-oblong, 3-7 cm. long, 1-2.5 cm. wide, long-acuminate to acuminate, glabrous or nearly so, pale to whitish and sometimes slightly pubescent on the midrib be­neath, with acuminate teeth, the lateral nerves slender; in­florescence 5-10 cm. across, densely many-flowered, glabrous or loosely brown-pubcscent at anthesis, becoming glabrous in fruit; flowers white, 6-8 mm. across; calyx glabrous, the teeth erect or only slightly incurved in fruit; petals spreading, nearly orbicular, short-clawed, often thinly puberulent inside at base, as long as the stamens; fruit red, 4-5 mm. across, glo­bose. May-July. Mountains.

Hokkaido, Honshu, Shi­koku, Kyushu.

var. rufoferruginea C. K. Schneid. Inflorescence, the calyx­ tube at anthesis, and the leaves beneath along the midrib with long, soft, brown hairs. Mountains; Honshu, Shikoku, Kyushu.

var. sachalinensis Koidz. Leaflets larger, to 8-9 cm. long. Hokkaido. s. Kuriles and Sakhalin.

Sorbus X rikuchuensis Makino. Leaves pinnately divided on lower half, pinnately parted to lobed on upper half, 4-8 cm. wide, glabrous on upper side, irregularly toothed, pubescent beneath, brown-pubescent on nerves be­neath, 6-12 cm. long, the leaflets and lobes chartaceous, spread­ing. Honshu (Rikuchu Prov.); rare; a hybrid involving S. commixta and an unknown second parent. Hybrids of uncertain origin occurring in Honshu 

Korea Flora: Deciduous shrub, 6-8m tall. Winter buds sticky; narrowly ovoid, apex acute, with 3-4 basal scales. Terminal buds larger than lateral buds (10-17mm long); branchlets and winter buds glabrous. Leaf scars remain at the base of petioles, V-shaped or U-shaped. Leaves alternate, pinnate compound leaves with (9)11-13(15) leaflets; leaflets lanceolate, broadly lanceolate, or elliptic-lanceolate, cuneate base, 2.5-4(5)cm × 1-1.5cm; glabrous on both surfaces, upper surface green, lacking luster, lower surface light green, margins sharply doubly serrate or singly serrate. Stipules small (3mm), deciduous early. Petioles 2-3cm long. Inflorescences compound racemose, 8-12cm in diameter, glabrous. Flowers 11mm in diameter, white; styles 3-4, 2.0mm long. Fruits samaras, globose, red, 5mm in diameter.

Flowering: May-July.
Fruiting: September-October.
Distribution: Sakhalin (Russia), throughout Japan; Jirisan Mountain, Deogyusan Mountain, Jeju Island (Korea).
Taxonomic note: This species is characterized by glabrous winter buds and is mainly distributed across the Korean Peninsula (except Baekdusan Mountain and Ulleungdo Island).

Sorbus commixta
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Sorbus commixta image
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Sorbus commixta image
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Sorbus commixta image
Chin Sung Chang
Sorbus commixta image
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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