잎꽃돌나물
| 과 | 돌나물과(Crassulaceae) 7속 (피자식물문/목련강/장미목) |
|---|---|
| 속 | 돌나물속(Sedum) 13종 |
| 국명 | 잎꽃돌나물 |
| 학명 | Sedum kiangnanense D. Q. Wang & Z. F. Wu |
| 개요 | Korean name: Ip-kkot-dol-na-mul (잎꽃돌나물). Herbs perennial, fleshy, glabrous, 10?25 cm tall. Roots fibrous at the basal node of stem. Stems stout, erect or ascending from creeping base. Leaves of sterile stems 4?5- verticillate, sessile; lower leaves linear-spatulate to oblanceolate or linear, 6?18 × 2?3 mm, base cuneate to shortly spurred, apex obtuse or rarely acute; upper leaves spatulate, 15?25 (?35) × 10?22 (?30) mm, base abruptly cuneate, apex retuse or truncate to obtuse. Leaves on flowering stems 4?5-verticillate or subverticillate at lower half of the stem, usually alternate at upper half of the stem; blades broadly linear to oblanceolate, 8?18 × 1.5?2.5 mm, base shortly spurred, apex acute. Inflorescences terminal, scorpioid cyme, 3- or 4-branched, ca. 5 cm in diam.; bracts leaf-like, linear-lanceolate or lanceolate, 8?19 mm long. Flowers bisexual, 5-merous, sessile or rarely pedicellate. Sepals unequal; four linear, apex acute, 2 × 0.5 mm; one oblanceolate or linear, apex obtuse, 7.5 (?10) × 2 mm. Petals yellow, broadly lanceolate to lanceolate-oblong, 4? 7 × 2?3 mm, apex acuminate. Stamens 10; antesepalous ones 5, 5?6 mm long; antepetalous ones 5, 4?5 mm long; anthers bright red to red, pollen yellow. Nectar scales flabellate or rectangular, 0.4?0.45 × 0.5?0.6 mm, base slightly narrowed. Carpels 5, ovoid-lanceolate, 3?4 mm long, gibbous ventrally, base connate. Styles ca 1 mm. Fruit follicles, divergent, 6?7 mm long, many seeded. Seeds ovoid-ellipsoid, 0.7?1 mm long, tuberculate. Flowering: late April to early June. Fruiting: June to July. Distribution: Korea (Jeollanam-do), China (Anhui, Zhejiang). Type: CHINA. Anhui: Huangshan, Tongkou, elev. 430 m, 11 Apr 1988, Wang Dequn 9229, in the Herbarium of Anhui Traditional Medical College (not seen). |
| 근연종* | A key to Sedum kiangnanense and related taxa in Korea Leaves verticillate on sterile stems. 2. Leaves 3-verticillate on sterile stems, oblanceolate to oblong ·································· S. sarmentosum 돌나물 2. Leaves 4- or 5-verticillate on sterile stems, spatulate on upper part of sterile stems ···································· ···································· S. kiangnanense 잎꽃돌나물 1. Leaves alternate or opposite on sterile stems. 3. Leaves spatulate, obovate or suborbicular, flattened. 4. Bulblet usually present in leaf axils ····················· ·········································· S. bulbiferum 말똥비름 4. Bulblet absent in leaf axils. 5. Leaf apex round ········ S. makinoi 둥근잎비름 5. Leaf apex emarginate ·· S. tosaense 주걱비름 3. Leaves linear, lanceolate, or oblong, terete or flattened. 6. Leaves terete, apex round; petals 1.5?2 times longer than sepals. 7. Leave linear, 8?18 mm long, somewhat sparsely arranged ···················· S. oryzifolium 땅채송화 7. Leave widely linear-elliptic to oblong, 3?7 mm long, mostly densely arranged ··························· ······································ S. japonicum 돌채송화 6. Leaves flattened, apex acute-acuminate; petals 2.5?4 times longer than sepals. 8. Leaves somewhat sparsely arranged in entire stems at anthesis ············· S. polytrichoides 바위채송화 8. Leaves densely arranged in upper half of stems at anthesis ·············· S. lepidopodum 갯돌나물 |
| 참고문헌 | DOI: https://doi.org/10.11110/kjpt.2020.50.2.247 |
