词条 | Dracaena aletriformis |
释义 |
| taxon = Dracaena aletriformis | name = Large-leaved dragon tree | image = Dracaena_aletriformis_tall.JPG | image_caption = | authority = (Haw.) Bos | synonyms =Dracaena hookeriana K.Koch [family DRACAENACEAE] Pleomele hookeriana (K.Koch) N.E.Br. [family DRACAENACEAE] Dracaena rumphii (Hook.) Regel [family DRACAENACEAE] Dracaena latifolia Regel [family DRACAENACEAE] Draco hookeriana (K.Koch) Kuntze [family DRACAENACEAE] Cordyline rumphii Hook. [family AGAVACEAE] Yucca aletriformis Haw. [family AGAVACEAE] Sansevieria paniculata Schinz [family DRACAENACEAE][1] }}Dracaena aletriformis is commonly known as the large-leaved dragon tree. These plants are found in forest in the eastern areas of South Africa from Port Elizabeth to northern and eastern Gauteng.[2] They are also found in Swaziland,[2] but are most common in the coastal and dune forests of KwaZulu-Natal.[3] TaxonomyThis plant has 8 synonyms.[1] In the APG III classification system, the genus Dracaena is placed in the family Asparagaceae, subfamily Nolinoideae (formerly the family Ruscaceae).[4]) It has also been placed in the Agavaceae (now the subfamily Agavoideae) and the Dracaenaceae. Like many lilioid monocots, it was formerly placed in the family Liliaceae (lily family).[2] DescriptionSingle stemmed or branched (usually at the base). The leaves are large and strap-shaped in rosettes at the tips of the stem/s. The leaves are leathery, shiny, and dark green, with whitish margins. These plants may grow up to 4 m tall. The flowers are produced on a much branched flowering head. The flowers are silvery-white and described as sweetly[3] or strongly[2] scented. The two-lobed berry-like fruit ripen to a reddish-orange colour. Ecological SignificanceThe flowers open from late afternoon to early morning and attract night-active pollinator moths. Birds eat the fruit; helping to remove the orange pulp which contains a growth inhibitor that otherwise slows germination of the seeds.[2] Snails and the larvae of the Bush Night Fighter butterfly, Artitropa erinnys, feed on the leaves.[2][5] Birds and mice nest among the leaves of these plants.[3] Gallery{{Gallery|title= |footer= |width=240 |lines=2 |Image:Dracaena_aletriformes_group.JPG|A group of D. aletriformis in dune vegetation. |Image:Dracaena_aletriformis_hanging_fruit.JPG|Fruit of D. aletriformis. |Image:Dracaena_aletriformes_Isoglossa_woodii.JPG|Surrounded by Isoglossa woodii in dune vegetation. |Image:Dracaena_aletriformis_young.JPG|A young specimen. }} References1. ^1 Dracaena aletriformis (Haw.) Bos [family DRACAENACEAE]{{dead link|date=December 2016 |bot=InternetArchiveBot |fix-attempted=yes }}{{dead link|date=September 2017 |bot=InternetArchiveBot |fix-attempted=yes }}, Aluka 2. ^1 2 3 4 5 Viljoen, C. (2003). Dracaena aletriformis, Kirstenbosch National Botanical Garden. 3. ^1 2 Pooley, E. (1993) 4. ^{{Citation |last=Chase |first=M.W. |last2=Reveal |first2=J.L. |last3=Fay |first3=M.F. |year=2009 |title=A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae |journal=Botanical Journal of the Linnean Society |volume=161 |issue=2 |pages=132–136 |doi=10.1111/j.1095-8339.2009.00999.x|lastauthoramp=yes }} 5. ^Williams, M. (1994). Bibliography{{commonscat|Dracaena aletriformis}}
1 : Dracaena |
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