|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Iridaceae||View Description||Dichotomous Key|
|Genus: Iris||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Iris macrosiphon Torr.
Habit: Rhizome 7--9 mm diam. Stem: unbranched, 0--15 cm. Leaf: basal 3--6 mm wide, base generally colorless; cauline 0--3, similar to basal. Inflorescence: flowers 1--2; lowest 2 bracts opposite, enclosing perianth tube, outer 5--9 cm, 9--17 mm wide. Flower: perianth cream to gold-yellow or lavender to deep blue-purple, generally veined darker, tube 34--65 mm, abruptly inflated, bowl-like at top; sepals 4--7 cm, 14--22 mm wide, widely elliptic, clawed, +- flared at base; petals 4--7 cm, 6--11 mm wide, elliptic; ovary triangular, style branches 19--33 mm, crests 8--18 mm, stigmas triangular. Chromosomes: 2n=40.
Ecology: Common. Open to partly shaded slopes in oak or pine woodland; Elevation: generally < 1000 m. Bioregional Distribution: s KR, NCoR, n&c SNF, SnFrB. Flowering Time: Mar--May Note: Highly variable in size, perianth color.
Synonyms: Iris amabilis Eastw.; Iris californica Leichtlin
eFlora Treatment Author: Carol A. Wilson
Jepson Online Interchange
Previous taxon: Iris longipetala
Next taxon: Iris missouriensis
Citation for this treatment: Carol A. Wilson 2017. Iris macrosiphon, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=29289, accessed on March 30, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on March 30, 2017.