Contains 10 accepted taxa overall.
Characteristics
This genus has been very finely split, especially by Bicknell, who authored 70+ "obscurely defined species" (Ward 2005: 32). See also Ward (1968, 1976, 1999, 2014) and Ward & Gillis (1975).
Classification
Citation
SISYRINCHIUM Linnaeus, Sp. Pl. 954. 1753.
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TYPE: Sisyrinchium bermudiana Linnaeus
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Sisyrinchium albidum | White Blue-eyed-grass | |||
| Sisyrinchium angustifolium | Narrow-leaved Blue-eyed-grass | |||
| Sisyrinchium atlanticum | Atlantic Blue-eyed-grass, Eastern Blue-eyed Grass | |||
| Sisyrinchium capillare | Glade Blue-eyed-grass | |||
| Sisyrinchium dichotomum | White Irisette, Isothermal Irisette | |||
| Sisyrinchium fuscatum | Glade Blue-eyed-grass | |||
| Sisyrinchium miamiense | ||||
| Sisyrinchium mucronatum | Needle-tip Blue-eyed-grass | |||
| Sisyrinchium nashii | Nash's Blue-eyed-grass | |||
| Sisyrinchium rufipes | Red Based Blue-eyed-grass |
Identification Key
1. Inflorescence clusters sessile, subtended by a basal spathe far exceeding the inflorescence cluster
1. Inflorescence clusters pedunculate, the basal spathe not reaching the distalmost inflorescence clusters
2
2. Leaf bases persistent as dense, fibrous tufts
3
2. Leaf bases not persistent as fibrous tufts or sparsely so
5
3. Stems 1-1.7 mm wide, with 1 node
3. Stems 2.3-5.7 mm wide, with 1-3 nodes
4
4. Plant yellowish green or light olive green when dry; stem nodes 1-2, first internode longer than longest leaf; leaf blades 1-4 mm wide; fruit 2.5-4(4.8) mm long; seeds 1-1.2 mm long
4. Plant dark to blackish olive when dry; stem nodes 2-3, first internode subequal to longest leaf; leaf blades 3.5-6 mm wide; fruit (3.8)5-8 mm long; seeds 1.3-3 mm long
5. Annual or short-lived perennial; tepals white, pink, maroon, yellow, to pale bluish, the tips acute, short-acuminate
5. Perennial; tepals pale blue, blue, pale lavender, to violet, the tips usually rounded or retuse with an aristate or mucronate apex
6
6. Stems 2.3-5 mm wide; fruit 4-7 mm long
6. Stems 0.5-2(2.5) mm wide; fruit 2-4.7 mm long
7
7. Ovary and capsule black, contrasting with much lighter foliage
8
7. Ovary and capsule not contrasting with foliage
9
8. Plant laxly spreading, to 57 cm long, nodes sharply geniculate, stems with 1(2) forks
8. Plants stiffly erect, to 75 cm tall, nodes not geniculate, stems with (1)2(3) forks
9. Inflorescence outer spathe margins basally connate 2.2-3.8(5) mm
9. Inflorescence outer spathe margins basally connate 3.9-6.5 mm
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||