|University of California, Berkeley|
|Jepson eFlora: Taxon page
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|Family: Iridaceae||View Description||Dichotomous Key|
|Genus: Iris||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Iris longipetala Herb.
Habit: Rhizome 10--25 mm diam. Stem: rarely branched, 30--60 cm. Leaf: basal 5--11 mm wide; cauline 1--2, bract-like for at least 2/3 stem length. Inflorescence: flowers 3--6; lowest 2 bracts alternate (opposite), enclosing perianth tube, 0.5--10 cm apart, outer 7--15 cm. Flower: perianth lilac-purple, veined darker, tube 5--13 mm, funnel-shaped; sepals 6--10 cm, 30--50 mm wide, obovate; petals 5--9 cm, 15--21 mm wide, elliptic; ovary rounded, style branches 35--43 mm, crests 12--15 mm, stigmas 2-lobed. Chromosomes: 2n=86--88.
Ecology: Moist, coastal prairie or open coastal forest; Elevation: < 600 m. Bioregional Distribution: c&s NCo, s NCoRO, n&c CCo, SnFrB. Flowering Time: Mar--Jun Note: May be a coastal form of Iris missouriensis.
eFlora Treatment Author: Carol A. Wilson
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Iris innominata
Next taxon: Iris macrosiphon
Citation for this treatment: Carol A. Wilson 2016. Iris longipetala, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=29293, accessed on December 02, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 02, 2016.