WebCirsium hillii Monitoring Plants of Concern at Chicago Botanic garden Daniella DeRose, Chicago Botanic Garden Chicago Botanic Garden’s Plants of Concern (POC) program is a collaboration between citizen scientists, natural resource managers, and researchers to … Web(Cirsium flodmanii) Hill’s thistle (Cirsium pumilum. var. hillii) Life Cycle: Perennial. Habitat: Wet or dry upland prairies, roadsides. Soil moisture: Wet - mesic to mesic. Height: 2 - 5 ft. Leaves: Lobed or non-lobed (can be wavy); underside with dense, pale felt-like hairs; upperside green with thinly matted hairs to somewhat hairless. Stems:
Saving threatened plant species: Reintroduction of Hill’s …
WebCirsium discolor (pasture thistle) is similar to tall thistle, but its leaves are deeply lobed and the spines are stout. Cirsium hillii (Hill’s thistle) is a biennial with slightly thickened roots that have hollow longitudinal chambers. The involucre is 2.5 - … WebEtymology: Cirsium = from the Greek kirsion, "a kind of thistle;" also cirsos meaning "a swollen vein" for which thistle was once a remedy. Characteristics: Spiny biennials or perennials.Leaves alternate, sessile, usually pinnatifid and spiny. Flowers all tubular, perfect, or (in C. arvense) dioecious, rose to purple, rarely white or cream.. Involucral bracts … rayan ourrach
Hill’s thistle (Cirsium hillii) COSEWIC assessment and status report ...
http://www.iowaplants.com/flora/family/Asteraceae/cirsium/Cirsium_spp.html WebFlodman's thistle Cirsium flodmanii 7 2.4 2.9 46 54. Hill's thistle Cirsium pumilum var. 5 0.6 3.2 16 84 hillii. Pitcher's thistle Cirsium pitcheri 7 1.1 4.1 22 78 swamp thistle Cirsium muticum 5 1.0 2.6 28 72 tall thistle Cirsium altissimum 6 1.5 4.8 24 76. Single-choice oviposition tests with Hadroplotus litura on Cirsium species. St. Paul ... WebCirsium hillii also reproduces vegetatively by adventitious buds that form along the lateral roots. The primary taproots die with the remainder of the plant after flowering. Several lateral shoots may be produced by a single plant. Suppression of the natural fire regime in … rayan officiel