Comments
(
英語
)
由eFloras提供
Cynanchum szechuanense is quite variable in the length of corona lobes. Forms with the longest lobes are restricted to W Sichuan but those with short triangular lobes are found throughout the species range. Further studies are needed to show if infraspecific taxa can be recognized.
- 許可
- cc-by-nc-sa-3.0
- 版權
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
(
英語
)
由eFloras提供
Plants pubescent or pilose except for corolla. Stems twining, to 6 m, pubescent along 1 side. Petiole 1.5-5.5 cm; leaf blade ovate or triangular-ovate, 3.2-13(-23) × 1.5-8.5
(-13.5) cm, papery, adaxially minutely appressed puberulent, abaxially pubescent on veins, base deeply cordate with basal lobes sometimes incurved and rarely slightly enlarged, apex acuminate; basal veins 5-7, pedate, lateral veins 2 or 3 pairs. Inflorescences long, simple or with short lateral branches; cymules distinct, many flowered, umbel-like or ± contiguous, few flowered, and racemelike; peduncle 4-8(-12.5) cm, rachis 0-7 cm. Sepals lanceolate, ca. 3.5 × 1 mm; basal glands present. Corolla green or white with purple apex, rotate to reflexed, tube short; lobes lanceolate, 3.5-5.5(-6.7) × 1.4-2 mm, glabrous outside, pubescent inside. Corona white, tube cupular, 1.3-2.5 mm high, membranous, margin with 5 main lobes, these triangular to threadlike, 1.2-3 mm, sinuses between these each usually with ca. 3 small rounded teeth, sometimes ± truncate; inner appendages lanceolate to threadlike, as long as or exserted from tube. Anther appendages rounded; pollinia oblong. Stigma head conical. Follicles lanceolate in outline, 7.5-9 × ca. 1.5 cm. Fl. May-Jul.
- 許可
- cc-by-nc-sa-3.0
- 版權
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
(
英語
)
由eFloras提供
* Open woodland, climbing over shrubs; 2300-3200 m.
- 許可
- cc-by-nc-sa-3.0
- 版權
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
(
英語
)
由eFloras提供
Cynanchum szechuanense var. albescens Tsiang & Zhang.
- 許可
- cc-by-nc-sa-3.0
- 版權
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Cynanchum szechuanense: Brief Summary
(
越南語
)
由wikipedia VI提供
Cynanchum szechuanense là một loài thực vật có hoa trong họ La bố ma. Loài này được Tsiang & H.T.Zhang mô tả khoa học đầu tiên năm 1974.
四川鹅绒藤: Brief Summary
(
漢語
)
由wikipedia 中文维基百科提供
四川鹅绒藤(学名:Cynanchum szechuanense)为夹竹桃科鹅绒藤属的植物,是中国的特有植物。分布在中国大陆的四川等地,生长于海拔2,900米的地区,多生长于山地疏林中,目前尚未由人工引种栽培。