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Crassula pubescens thunb식물/들꽃-돌나물과(Crassulaceae) 2022. 4. 29. 21:42
국표에는 없다.
DESCRIPTIONC.pubescens can be identified by the globular petal appendages of its flowers. Those of Crassula pubescens subsp. pubescens are oval
A small (up to 40 cm), shrubby perennial, with delicate, erect stems and pubescent (velvety) leaves that are 1-3 cm long. The peduncle emerges above the leaves of the rosette. The peduncle is 3-15 cm long, with one or two bract-pairs (not 15-40 cm long with 2-5 bract pairs like those of Crassula subacaulis). The tips of its 2-3mm long petals are roughly twice as long as they are broad, and have rounded appendages (not beaked/rostrate like those of Crassula atropurpurea).
Subspecies Crassula pubescens subsp. pubescens has erect branches, pubescent (velvety) leaves and petal appendages that are elongated-oval
Crassula pubescens subsp. radicans has hairless leaves and petal appendages that are round
This species is variable, and several subspecies exist, which differ in their core features:
sbsp. pubescens: The main subspecies has erect, non-rooting branches that are visible between the pubescent-to-papillate leaves. Its petal appendages are elongated ovally rounded. sbsp. radicans (Haw.) Tölk.: This eastern subspecies has smooth leaves and slender, decumbent, rooting branches. sbsp. rattrayi (Schönl. & Bak.f.) Tölk.: Inflorescence in an erect thyrse.
Related species C. pubescens is closely related to the similar species Crassula subaphylla (which has longer petals - 3,5-4,5 mm), Crassula cultrata, Crassula cotyledonis, Crassula atropurpurea and Crassula nudicaulis. C.pubescens is much smaller than Crassula cultrata (which has a distinguishing spike inflorescence and leaves that are usually longer than 3 cm).ABSTRACTCrassula pubescens is a succulent plant, common and widespread in the southern Karoo regions of South Africa.Crassula pubescens Thunb. (gbif.org)
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