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Proboscidea lutea

Higher Taxonomy
Family: MartyniaceaeView Description 

Common Name: UNICORN-PLANT FAMILY
Habit: Annual, perennial herb, glandular-hairy, generally strongly scented. Leaf: simple, opposite or alternate; stipules 0; petiole long. Inflorescence: raceme, terminal, bracted; bractlets 2, just below flower. Flower: bisexual; sepals 5, +- unequal; corolla 2-lipped, generally 5-lobed; stamens epipetalous, generally 2 long, 2 short, 1 vestigial; ovary superior, 1-chambered, placentas 2, parietal, 2-lobed, style > ovary, curved, stigma 2-lobed, flat, generally closing when touched. Fruit: capsule, drupe-like; outer layer fleshy, deciduous; inner layer ultimately exposed, woody, tip incurved, splitting to form 2 claws.
Genera In Family: 4 genera, 16 species: generally +- tropical America; some cultivated. Note: No evidence that insects stuck to glands are digested.
eFlora Treatment Author: Margriet Wetherwax & Lawrence R. Heckard
Scientific Editor: Thomas J. Rosatti.
Genus: ProboscideaView DescriptionDichotomous Key

Common Name: UNICORN-PLANT
Habit: Taproot branched or tuberous. Stem: prostrate to spreading, generally < 1 m. Leaf: blade broadly ovate to round or triangular, palmately veined (generally palmately lobed), base cordate. Inflorescence: bractlets < calyx. Flower: calyx 1--2 cm, generally 5-lobed, split to base on lower side, or sepals free; corolla 2--5 cm, bell- to funnel-shaped, showy, tube cylindric, generally < 1 cm, bent downward, throat 10--30 mm, limb with 5 flared lobes, throat and lower limb with colored lines (nectar guides). Fruit: body 5--10 cm, fusiform, smooth, rough, or spiny, crested with branched projections generally only along upper suture; claws 1.5--3 × body. Seed: 8--13 mm, angled, generally black, corky.
Species In Genus: 8 species: America. Etymology: (Greek: elephant's trunk) Note: Fruit dispersed by attachment of claw to animals. Proboscidea parviflora subsp. parviflora not in California according to some reports, naturalized in California according to others.
Unabridged Note: All California material previously identified as Proboscidea parviflora subsp. parviflora belongs instead to Proboscidea parviflora var. hohokamiana Bretting, according to some but not all reports; in California only in cultivation according to some reports, naturalized in California according to others; in Arizona cultivated by Native Americans for fibers from fruit.

Proboscidea lutea (Lindl.) Stapf
NATURALIZED
Habit: Annual. Leaf: blade 10--20 cm wide, blade +- rounded, angled or not, entire to dentate. Inflorescence: few--many-flowered, generally exceeded by leaves. Flower: sepals free, upper 3 narrower; corolla yellow, often with orange tinge, generally with darker markings. Fruit: body 3--4 cm wide, ovate, short-spiny. Chromosomes: 2n=30,32.
Ecology: Uncommon. Open, disturbed places; Elevation: < 500 m. Bioregional Distribution: GV, SnFrB, expected elsewhere; Distribution Outside California: native to South America. Flowering Time: Jul--Aug
Synonyms: Ibicella lutea (Lindl.) Eselt.
eFlora Treatment Author: Margriet Wetherwax & Lawrence R. Heckard
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Previous taxon: Proboscidea louisianica subsp. louisianica
Next taxon: Meliaceae

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botanical illustration including Proboscidea lutea

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Citation for this treatment: Margriet Wetherwax & Lawrence R. Heckard 2016. Proboscidea lutea, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=77314, accessed on February 07, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 07, 2016.


Proboscidea lutea
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© 2009 Barry Rice
Proboscidea lutea
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© 2006 Barry Rice
Proboscidea lutea
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© 2007 Barry Rice
Proboscidea lutea
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© 2014 Neal Kramer
Proboscidea lutea
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© 2014 Neal Kramer
Proboscidea lutea
click for enlargement
© 2014 Neal Kramer

More photos of Proboscidea lutea in CalPhotos


Geographic subdivisions for Proboscidea lutea:
GV, SnFrB, expected elsewhere;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.