Lipocarpha occidentalis explained

Lipocarpha occidentalis, the Western halfchaff sedge, or Pacific halfchaff sedge, is a plant species native to western part of the United States but cultivated as an ornamental in other regions.^[1] It is widespread in California (in the Mojave and Sonoran Deserts, the Central Valley, and the Redwood Country), with populations also reported from Oregon (Klamath County) and Washington state (Klickitat County).^{[2] [3]}

Lipocarpha occidentalis is an annual herb up to 50 cm tall, forming clumps but not rhizomes. Culms are round in cross-section. Leaves are bristly, up to 3 cm long. Inflorescence an egg-shaped cluster of spikes; each spike with 2 scales, each scale subtending a hermaphroditic flower. Achenes are egg-shaped, up to 1 mm long.^{[2] [4] [5] [6] [7] [8]}

Notes and References

1. http://it.gardening.eu/arc/piante/Piante-appartamento/Lipocarpha-occidentalis-Gray-G.-Tucker/39704/ Gardening.eu, Papiro Lipocarpha occidentalis
2. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242357855 Flora of North America v 23 p 197, Lipocarpha occidentalis
3. http://bonap.net/MapGallery/County/Lipocarpha%20occidentalis.png BONAP (Biota of North America Project) floristic synthesis, Lipocarpha occidentalis
4. https://www.biodiversitylibrary.org/page/9252530#page/428/mode/1up Tucker, Gordon C. 1987. Journal of the Arnold Arboretum 68(4): 410.
5. https://www.biodiversitylibrary.org/page/3068501#page/397/mode/1up Gray, Asa. 1868. Proceedings of the American Academy of Arts and Sciences 7(2): 391–392.
6. https://www.biodiversitylibrary.org/page/33599993#page/34/mode/1up Clarke, Charles Baron. 1908. Bulletin of Miscellaneous Information: Additional Series 8: 30.
7. Goetghebeur, P. & A. Van den Borre. 1989. Studies in Cyperaceae 8. A revision of Lipocarpha, including Hemicarpha and Rikliella. Wageningen Agricultural University Papers 89(1): 1–87.
8. Hickman, J. C. 1993. The Jepson Manual: Higher Plants of California 1–1400. University of California Press, Berkeley.