Lastarriaea Coriacea
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Lastarriaea Coriacea
''Lastarriaea coriacea'' is a species of flowering plant in the buckwheat family known by the common name leather spineflower. It is native to California and adjacent northern Mexico where it is a common plant of many habitat types. This is an annual herb forming a patch of stems growing flat on the ground or rising slightly to a maximum height near 15 centimeters. The small leaves are located basally, where the stems emerge from the ground. They are generally hairy and linear in shape, and not more than 3 centimeters long. The stems branch into wide inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...s bearing pointed bracts and flowers with spiky awns. External linksJepson Manual Treatment
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Polygonaceae
The Polygonaceae are a family of flowering plants known informally as the knotweed family or smartweed—buckwheat family in the United States. The name is based on the genus '' Polygonum'', and was first used by Antoine Laurent de Jussieu in 1789 in his book, ''Genera Plantarum''.Antoine Laurent de Jussieu. 1789. ''Genera plantarum: secundum ordines naturales disposita, juxta methodum in Horto regio parisiensi exaratam''. page 82. Herrisant and Barrois: Paris, France. (see ''External links'' below) The name may refer to the many swollen nodes the stems of some species have, being derived from Greek, ''poly'' meaning 'many' and ''gony'' meaning 'knee' or 'joint'. Alternatively, it may have a different derivation, meaning 'many seeds'. The Polygonaceae comprise about 1200 speciesDavid J. Mabberley. 2008. ''Mabberley's Plant-Book'' third edition (2008). Cambridge University Press: UK. distributed into about 48 genera. The largest genera are ''Eriogonum'' (240 species), '' Rumex ...
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