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|Family: Lentibulariaceae||View Description||Dichotomous Key|
|Genus: Utricularia||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Utricularia ochroleuca R.W. Hartm.
Habit: Rooted aquatic. Stem: of 2 kinds, some freely floating, green, with leaves, +- few bladders, others rooted in mud, white, without leaves, with bladders; winter buds bristly. Leaf: 5--15 mm, 3-parted at base, variously dissected above; ultimate segments < 20, +- linear, flattened, margins with 1 bristle on each of 2--7(10) teeth, tip acute. Inflorescence: 2--5-flowered; peduncle < 15 cm, < 1 mm diam. Flower: corolla 10--15 mm; lower lip +- 2 × upper, +- 2 × conical (sometimes cylindrical-tipped) spur. Fruit: not seen. Seed: not seen. Chromosomes: 2n=+-40--48.
Ecology: Shallow (generally < 30 cm) acidic waters; Elevation: 1300--2400 m. Bioregional Distribution: CaRH (Plumas Co.), n SNH (El Dorado Co.), MP (Modoc Co.); Distribution Outside California: northern United States, Canada; circumboreal. Flowering Time: Jun--Sep Note: Probably of hybrid origin (Utricularia minor × Utricularia intermedia). Known from only 3--4 sites.
Synonyms: Utricularia stygia G. Thor
Unabridged Note: Probably of hybrid origin (Utricularia minor × Utricularia intermedia); Utricularia ochroleuca split elsewhere (Europe) into U. ochroleuca s. str. (bladder glands long arm-pair diverging by 30--45°, short arm-pair diverging by 90--160°) and U. stygia G. Thor (bladder glands long arm-pair diverging by 20--45°, short arm-pair diverging by 40--80°), both in California (U. stygia native to Alaska, northern Canada, Eur).
eFlora Treatment Author: Barry A. Rice
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Utricularia minor
Next taxon: Utricularia subulata
Citation for this treatment: Barry A. Rice 2016. Utricularia ochroleuca, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=47610, accessed on April 29, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on April 29, 2016.