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Lappula zapateri

Interesting Facts

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Description

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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]

Genus Lappula

Plants annual or biennial, rarely perennial , pilose , strigose , rarely sericeous throughout, hairs tuberclelike or discoid at base . Leaves alternate. Inflorescence a drepanium , elongated after anthesis , bracteate . Calyx 5-parted nearly to base; lobes frequently enlarged in fruit. Corolla light blue, rarely white, campanulate or low salverform ; tube short; throat appendages 5, trapeziform; limb 5-parted. Stamens included . Ovary globose , 4-parted. Style not exserted; stigma capitate. Gynobase subulate veined, ca. as long as or surpassing nutlets , rarely shorter. Nutlets 4, adherent to gynobase by entire adaxial rib or only by rib base, erect , homomorphic or heteromorphic; margin of abaxial surface usually with 1(-3) rows of glochids; bases of glochids separated or contiguous or confluent into a wing , rarely reduced to tubercles .

About 61 species: temperate regions of Africa, Asia, Europe, and North America; 36 species in China.[2]

Taxonomy

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Similar Species

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Members of the genus Lappula

ZipcodeZoo has pages for 7 species, subspecies, varieties, forms, and cultivars in this genus:

L. cenchrusoides (Great Plains Sheepburr) · L. diploloma (Colorado Stickseed) · L. marginata (Margined Stickseed) · L. occidentalis (Flat-Spine Sheepburr) · L. occidentalis var. cupulata (Flatspine Stickseed) · L. occidentalis var. occidentalis (Flat-Spine Sheepburr) · L. squarrosa (Bristly Sheepburr)

More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  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 EFloras.org. [back]
  2. "Lappula". in Flora of China Vol. 16 Page 402. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 2012-07-26