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Paracaryum coelestinum


Common Names

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Common Names in English:



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Family Boraginaceae

Herbs perennial , biennial, or annual , less often lianas, shrubs , or trees , usually bristly or scabrous-pubescent. Leaves simple , exstipulate , alternate, rarely opposite, entire or serrate at margin . Inflorescences often double scorpioid cymes, rarely solitary; bracts present or absent. Flowers bisexual , actinomorphic , rarely zygomorphic. Calyx usually 5-parted or lobed , mostly persistent . Corolla tubular , campanulate , rotate, funnelform , or salverform ; tube appendages 5, rarely more, mostly trapeziform, rarely absent, sometimes a ring of hairs present; limb usually 5-parted; lobes overlapping, rarely twisted in bud. Stamens 5, inserted on corolla tube or rarely at throat , included or rarely exserted; anthers introrse , 2-loculed, usually dorsifixed at base , less often medifixed , dehiscence longitudinal . Nectaries at base of corolla tube or on disc below ovary. Ovary superior, 2-carpellate; locules 2 and each with 2 ovules, or 4 and each with 1 ovule; ovules nearly atropous , semianatropous, or anatropous . Style terminal or gynobasic , branched or not. Gynobase flat, fastigiate , or subulate . Fruit 1-4-seeded drupes or nutlets (mericarps) ; nutlets mostly dry, often ornamented with wings , prickles and/or glochids (stiff bristles with barbed or anchorlike tips ) . Seeds vertical or oblique , coat membranous; embryo straight, less often curved ; cotyledons flat, fleshy .

About 156 genera and 2500 species: temperate and tropical regions , centered in the Mediterranean region; 47 genera and 294 species in China, of which four genera and 156 species are endemic.[1]

Physical Description

Flowers: Flower Color: light blue


Size: 24-36" tall.


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Culture: Space 15-18" apart.

Sunlight: Sun Exposure: Full Sun .

Moisture: Drought Tolerance: High

Temperature: Cold Hardiness: 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b. (map)


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Similar Species

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Members of the genus Paracaryum

ZipcodeZoo has pages for 1 species, subspecies, varieties, forms, and cultivars in this genus:

P. coelestinum (Paracaryum)

More Info

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Further Reading

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  1. Gelin Zhu, Harald Riedl & Rudolf V. Kamelin "Boraginaceae". in Flora of China Vol. 16 Page 329. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at [back]
Last Revised: 2/1/2015