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Cryptantha hooveri
HOOVER'S CRYPTANTHA

Higher Taxonomy
Family: BoraginaceaeView DescriptionDichotomous Key

Common Name: BORAGE or WATERLEAF FAMILY
Habit: Annual to shrub or small tree, or non-green root parasite, often bristly or sharp-hairy. Stem: prostrate to erect. Leaf: basal and/or cauline, generally simple, generally alternate. Inflorescence: generally cymes, or panicle-, raceme-, head-, or spike-like, generally coiled in flower (often described as scorpioid), generally elongating in fruit, or flowers 1--2 per axil. Flower: bisexual, generally radial; sepals (4)5(10), fused at least at base, or free; corolla (4)5(10)-lobed, salverform, funnel-shaped, rotate, or bell-shaped, generally without scales at tube base, with 0 or 5 appendages at tube top, alternate stamens; stamens epipetalous; ovary generally superior, entire to 4-lobed, style 1(2), entire or 2-lobed or -branched. Fruit: valvate or circumscissile capsule or nutlets 1--4, free (fused), smooth to roughened, prickly or bristly or not.
Genera In Family: +- 120 genera, +- 2300 species: tropics, temperate, especially western North America, Mediterranean; some cultivated (Borago, Heliotropium, Echium, Myosotis, Nemophila, Phacelia, Symphytum, Wigandia). Toxicity: Many genera may be TOXIC from pyrrolizidine alkaloids or accumulated nitrates. Note: Recently treated to include Hydrophyllaceae, Lennoaceae. Wigandia urens added, as naturalized.
eFlora Treatment Author: Ronald B. Kelley, Robert Patterson, Richard R. Halse & Timothy C. Messick, family description, key to genera; treatment of genera by Ronald B. Kelley, except as noted
Scientific Editor: Ronald B. Kelley, Robert Patterson, Thomas J. Rosatti, Bruce G. Baldwin, David J. Keil.
Genus: CryptanthaView DescriptionDichotomous Key

Habit: Annual to perennial herb, generally erect. Stem: branches 0 or generally ascending to erect, hairy. Leaf: generally sessile; basal whorled, cauline generally alternate, reduced above (opposite below); generally strigose, rough-hairy, or bristly, largest bristles generally bulbous-based. Inflorescence: generally terminal, raceme- or generally spike-like cymes, in groups of 1--5 (> 5), generally coiled in bud, generally elongated in fruit; bracts generally 0. Flower: generally unscented, persistent or not; sepals fused at base; corolla tube generally 1--13 mm, limb 0.5--12 mm diam, generally white, appendages generally 5; anthers included; ovary generally 4-lobed. Fruit: pedicel 0 or < 12 mm in fruit; nutlets 1--4, generally gray to brown, smooth to granular, tubercled, or papillate, with abaxial, longitudinal ridge to not; margin rounded, sharp-edged, or a +- flat rim or wing; adaxially grooved above attachment scar, scar generally lateral, narrow, open to closed, raised or generally not, edges inrolled to sharp-angled, generally forked or flared open at base; central fruit axis ("axis") not reaching to extending beyond fruit.
Species In Genus: +- 200 species: western North America, western South America, northeastern Asia (1 sp.). Etymology: (Greek: hidden flowers, from cleistogamous flowers of some South American species) Note: Generally homostylous. The tissue between ovary lobes, interpreted as a receptacle and/or style (style sometimes 0, then stigma attached to top of receptacle), extends to various degrees in fruit, forming what is often called the gynobase (here "fruit axis"), to which the nutlets are laterally attached at maturity, leaving an attachment scar. Annual species without yellow corolla appendages generally self-pollinating; perennial herb species generally homostylous in California. Some species, e.g., Cryptantha angustifolia, Cryptantha ambigua, Cryptantha barbigera, Cryptantha mariposae, hybridize with co-occurring species. Observation of nutlets, hairs best at 10+× generally critical for identification. Corolla limb diam generally < at end of flower period, especially for annual species Cryptantha sobolifera Payson does not occur in California.
eFlora Treatment Author: Ronald B. Kelley, Michael G. Simpson & Kristen E. Hasenstab-Lehman

Cryptantha hooveri I.M. Johnst.
NATIVE
Habit: Annual 5--15 cm. Stem: erect, branches 0 or at base; dense-strigose to rough-hairy. Leaf: +- many, scattered, lowest opposite; 1--2.5 cm, linear to narrow-spoon-shaped, generally folded to inrolled; strigose to ascending-hairy, hairs bulbous-based abaxially. Inflorescence: head-like, only lowest flowers in each developing fruit; bracts scattered, thread-like; pedicel not elongated in fruit, < 0.5 mm, +- spreading. Flower: calyx 1.5--3 mm, 4--6 mm in fruit, persistent, lobes +- linear, margins dense-strigose to ascending rough-hairy, midvein not thickened, long spreading-bristly; corolla limb generally <= 1 mm diam. Fruit: nutlets 3--4, 1.2--1.5 mm, triangular- to wide-ovate, gray or tan, occasionally mottled, fine-grainy, shiny, margin +- sharp-angled to obtuse or +- flat at base, base wide-truncate, tip acute; abaxially low-rounded, tubercled, ridge 0; adaxially biconvex, sparse-papillate, attachment scar edges not raised, abutted +- entire length, wide-triangular-flare-gapped at base; axis to nutlets or not.
Ecology: Dry, coarse sand, flats and hills; Elevation: < 80 m. Bioregional Distribution: n&c SnJV. Flowering Time: (Mar)Apr--May
eFlora Treatment Author: Ronald B. Kelley, Michael G. Simpson & Kristen E. Hasenstab-Lehman
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

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Citation for this treatment: Ronald B. Kelley, Michael G. Simpson & Kristen E. Hasenstab-Lehman 2016. Cryptantha hooveri, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=21240, accessed on May 03, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 03, 2016.


Cryptantha hooveri
click for enlargement
© 2011 Steve Matson
Cryptantha hooveri
click for enlargement
© 2011 Steve Matson
Cryptantha hooveri
click for enlargement
© 2011 Steve Matson
Cryptantha hooveri
click for enlargement
© 2011 Steve Matson

More photos of Cryptantha hooveri in CalPhotos


Geographic subdivisions for Cryptantha hooveri:
n&c SnJV.
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.