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Iris forrestii. Iris subg. Limniris. Limniris forrestii (Dykes) Rodion. Iris forrestii is a species of flowering plant in the genus Iris, also the subgenus Limniris and in the series Sibiricae. It is a rhizomatous herbaceous perennial, from China (including Tibet) and Burma. It has linear grassy-like leaves, long thin stem and fragrant yellow ...
Iris wilsonii will tolerate temperatures of up to – 15 degrees C. But may survive lower if protected or well mulched in winter. It is hardy to USDA Zone 6–8, and Zone H2 (which means Hardy to -15 to-20oC (5 to -4oF ), in Europe. It prefers soils with a ph level of 5.5 to 7 (acidic to neutral) and more moisture tolerant.
Sand Ridge State Forest is the largest area of sand-dominated plants managed by the state of Illinois. [1] A 2013 study of vascular plants found 141 non-native (exotic) species in the state forest. [1] Endemic species include the prickly pear cactus , that may be more familiar to Mexicans and residents of the U.S. Southwest. [12] [7] [6]
Illinois state-owned protected areas include state parks, state forests, state recreation areas, state fish and wildlife areas, state natural areas, and one state trail. These areas are all administered by the Illinois Department of Natural Resources. In addition, dozens of state historic sites are administered by the Illinois Historic ...
Iris himalaica Dykes. Limniris clarkei (Baker ex Hook.f.) Rodion. Iris clarkei is a species in the genus Iris, also the subgenus of Limniris and in the series Sibiricae. It is a rhizomatous herbaceous perennial, from Asia, including north east India, Nepal, Tibet, Bhutan, Burma and in China. It has grey-green leaves, long and thin green stem ...
Iris brevicaulis is the smallest in all the Hexagonae series of Louisiana irises. [3] Its leaves and stalks are much shorter than the other species. [4] It is similar in form to Iris virginica, [5] The flowers are normally never seen above the foliage, [6] [4] [7] due to the short zig-zagging flower stems and occasionally, due to the habit of the stems to lie along the floor, [8] or it is ...
Iris delavayi will tolerate temperatures of up to −15 degrees C. [7] But may survive lower if protected or well mulched in winter. [16] It is hardy to USDA Zone 5–8, [5] [9] and Zone H2 (which means Hardy to −15 to −20 °C (5 to −4 °F) [26]), in Europe. [10] They prefer soils with a ph level of 5.5 to 7 (acidic to neutral). [9]
As most irises are diploid, they have two sets of chromosomes.This fact can be used to identify hybrids and classification of groupings. [16] It has a chromosome count: 2n=42, [2] [22] [18] It has been counted several times. 2n=42, differing from some other Louisiana Iris species, so hybrids from crossing with those other species should have an odd number of chromosomes, for example, an Iris ...
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