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Piperia yadonii
YADON'S REIN-ORCHID

Higher Taxonomy
Family: OrchidaceaeView DescriptionDichotomous Key

Common Name: ORCHID FAMILY
Habit: Perennial herb, terrestrial [growing on other pls], non-green (nutrition from association of roots with fungi) or green, generally from rhizomes or tubers with few to many fleshy to slender roots; cauline leaves +- reduced to sheathing stem bracts or not. Leaf: 1--many, basal to cauline, linear to +- round, alternate to opposite (if only 1 pair), generally sessile. Inflorescence: flowers 1--many, spike or raceme, bracted. Flower: bisexual, bilateral, in bud generally rotating 180° by twisting ovary (position of parts indicated after twisting); sepals generally 3, generally free, generally petal-like, uppermost generally erect, lateral with chin- or spur-like projection (mentum) or not; petals 3, 1 (lip) different, spurred or not; stamens generally 1 (3 in Cypripedium, 2 functional, 1 a staminode), fused with style, stigma into column, pollen generally lumped, generally removed as unit by insect; ovary inferior, 1-chambered, placentas 3, parietal, stigma 3 lobed, generally under column tip. Fruit: capsule. Seed: many, minute.
Genera In Family: +- 800 genera, +- 25000 species: especially tropics (worldwide except Antarctica). Many cultivated for ornamental, especially Cattleya, Cymbidium, Epidendrum, Oncidium, Paphiopedilum; Vanilla planifolia Andrews fruits used to flavor food. Note: Platanthera may be paraphyletic without inclusion of Piperia (Bateman et al. 2009 Ann Bot 104:431--445); study needed.
eFlora Treatment Author: Ronald A. Coleman, Dieter H. Wilken & William F. Jennings, except as noted
Scientific Editor: Ronald A. Coleman, Thomas J. Rosatti.
Genus: PiperiaView DescriptionDichotomous Key

Common Name: PIPERIA
Habit: Plant 10--130 cm; tubers, 1--4 cm, generally +- round; stem bracts lance-linear to ovate. Leaf: at flower 0 or +- basal, not in rosette, 2--5, linear to widely oblanceolate. Inflorescence: spike or raceme, generally cylindric, flowers not in spiral; flower bract generally < flower. Flower: fragrance, when present, generally at night; perianth white to green; sepals generally 2--5 mm, 1--2 mm wide, 1-veined, upper pointed forward to erect, lower free, spreading to reflexed; lateral petals +- = sepals, spreading to erect, lip spurred, pointed forward, down (or upcurved); column < lip; ovary inferior, generally twisted 180°. Fruit: ascending to erect.
Species In Genus: 10 species: North America. Etymology: (Charles V. Piper, American botanist, 1867--1926) Note: Some species difficult to separate.
eFlora Treatment Author: James D. Ackerman & Robert Lauri

Piperia yadonii Rand. Morgan & Ackerman
NATIVE
Habit: Plant 10--50(80) cm. Leaf: basal 10--17 cm, 20--39 mm wide. Inflorescence: (2)5--15(30) cm, dense. Flower: fragrant in daytime, harsh to honey-like; upper sepal green with white margin, +- erect, lower white, midvein faintly green; lateral petals +- erect, sickle-shaped, green, white margins unequal, outer much wider than inner, lip 2.5--5 mm, lance-deltate, pointed down toward spur, white, spur 2.5--5 mm, pointed down.
Ecology: Generally sandy soil or sandstone, coastal scrub, Monterey-pine forest; Elevation: < 150 m. Bioregional Distribution: c CCo (n Monterey Co.). Flowering Time: Jun--Jul
eFlora Treatment Author: James D. Ackerman & Robert Lauri
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

Previous taxon: Piperia unalascensis
Next taxon: Platanthera

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botanical illustration including Piperia yadonii

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Citation for this treatment: James D. Ackerman & Robert Lauri 2016. Piperia yadonii, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=38361, accessed on May 06, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 06, 2016.


Piperia yadonii
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© 2014 Aaron Schusteff
Piperia yadonii
click for enlargement
© 2014 Aaron Schusteff
Piperia yadonii
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© 1999 John Game
Piperia yadonii
click for enlargement
© 2014 Aaron Schusteff

More photos of Piperia yadonii in CalPhotos


Geographic subdivisions for Piperia yadonii:
c CCo (n Monterey Co.).
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.