Pachyphytum aduncum

Description

Family Crassulaceae

Herbs, subshrubs , or shrubs . Stems mostly fleshy . Leaves alternate, opposite, or verticillate , usually simple ; stipules absent; leaf blade entire or slightly incised, rarely lobed or imparipinnate . Inflorescences terminal or axillary , cymose , corymbiform , spiculate , racemose, paniculate , or sometimes reduced to a solitary flower. Flowers usually bisexual , sometimes unisexual in Rhodiola (when plants dioecious or rarely gynodioecious ), actinomorphic , (3 or) 4-6(-30) -merous. Sepals almost free or basally connate , persistent . Petals free or connate. Stamens as many as petals in 1 series or 2 × as many in 2 series. Nectar scales at or near base of carpels. Follicles sometimes fewer than sepals, free or basally connate, erect or spreading , membranous or leathery, 1- to many seeded. Seeds small; endosperm scanty or not developed.

About 35 genera and over 1500 species: Africa, America, Asia, Europe; 13 genera (two endemic, one introduced ) and 233 species (129 endemic, one introduced) in China.

Some species of Crassulaceae are cultivated as ornamentals and/or used medicinally.Kunjun Fu, Hideaki Ohba & Michael G. Gilbert "Crassulaceae". in Flora of China Vol. 8 Page 202. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.

Biology

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Taxonomy

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Domain: Eukaryota () - Whittaker & Margulis,1978
- Kingdom: Plantae () - Haeckel, 1866 - Plants
  - Subkingdom: Viridaeplantae () - Cavalier-Smith, 1981
    - Phylum: Tracheophyta () - Sinnott, 1935 ex Cavalier-Smith, 1998 - Vascular Plants
      - Subphylum: euphyllophytina ()
        Infraphylum: radiatopses () - kenrick & crane, 1997
        Class: Magnoliopsida () - Brongniart, 1843 - Dicotyledons
        Subclass: Rosidae () - Takhtajan, 1967
        Superorder: Saxifraganae () - Reveal, 1994
        Order: Saxifragales () - Dumortier, 1829
        Family: Crassulaceae () - A.P. de Candolle, 1805 - Stonecrop Family
        Genus: Pachyphytum ()
        Specific epithet: aduncum - Rose
        Botanical name: - Pachyphytum aduncum Rose