Key to Sisyrinchium
View taxon page for Sisyrinchium
(For a list of species in Sisyrinchium, use the above link.)
Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1. Perianth ± yellow;
filaments ± completely
free (sect.
Echthronema)
2' Stem generally < 2 mm wide; perianth generally 7–11 mm
3. Pedicels spreading Oriented more or less perpendicularly to the axis of attachment; often, more or less horizontal.
to drooping in
fruit; fruit generally widest near or above middle
..... S. elmeri 3' Pedicels
ascending Curving or angling upward from base, or about 30-60 degrees less than vertical or away from axis of attachment.
to
erect Upright; vertically oriented.
in fruit; fruit generally widest at middle
..... S. longipes 1' Perianth ± blue to violet (white), parts generally with a
basal At or near the base of a plant or plant part. Especially said of leaves clustered near the ground or of a placenta confined to the base of an ovary.
yellow blotch; filaments ± completely
fused (sect.
Sisyrinchium)
4. Stem branched;
leaves cauline at >= 1
node Position on a stem from which one or more structures (especially leaves, buds, branches, or flowers) arise.
5. Translucent
margins of inner
bract Reduced, leaf- or scale-like structure subtending a branch, cone scale, peduncle, pedicel, or flower.
not extended above tip; perianth deep blue-purple to -violet or pale blue, occasionally white, 10.5–17 mm, outer parts generally widely wedge-shaped; w California
..... S. bellum 5' Translucent margins of inner bract extended above tip as 2 rounded
teeth; perianth generally pale blue, 10–15 mm, outer parts generally narrowly wedge-shaped; ne DMoj
..... S. funereum 4' Stem unbranched; leaves all ± basal
6' Rhizome compact; perianth light to dark violet-blue (white), base not darker, with yellow blotch
7. Inner bract ± = outer, with widely translucent margins extended above tip as 2 rounded teeth; outer perianth parts generally wedge-shaped
..... S. halophilum 7' Inner bract << outer, with ± narrowly translucent margins ended at or below tip; outer perianth parts generally
elliptic In the shape of a flattened circle or ellipse; wider than linear
to narrowly oblanceolate
..... S. idahoense 8. Stem 2–2.5 mm wide,
distal margins generally with a few small teeth; outer perianth parts 13–17(20) mm
..... var. idahoense 8' Stem 1.5–2 mm wide, distal margins generally
entire Having margins that are continuous and smooth (i.e., without teeth, lobes, etc.).
; outer perianth parts 8–13 mm
..... var. occidentale
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