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Navarretia squarrosa (Eschsch.) Hook. & Arn.

Skunkbush (en)

Species

Angiosperms > Ericales > Polemoniaceae > Navarretia

Characteristics

Erect, viscid, foetid annual; stems to c. 40 cm high, branched from near base, glandular-hairy. Lvs rather ephemeral, the plant soon composed solely of a number of branches terminating in dense infls. Lamina of basal lvs to c. 8 cm long, finely dissected, with a central rachis bearing a number of filiform to linear pinnae; pinnae sometimes with 1-2 teeth. Bracts to c. 2 cm long, pinnately divided; pinnae linear, with apex and lobes spiny. Calyx 1-1.5 cm long; lobes < 1/2 length of tube, narrow-lanceolate, spine-tipped. Corolla scarcely > calyx, blue, broadly funnelform; lobes 2-3 mm long, narrow-elliptic to oblong. Stamens included. Capsule 4-5 mm long. Seeds 9-10 mm long, irregular, ± oblong, dark brown or blackish.
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An annual hairy weed. It has an unpleasant smell. The leaves are alternate and deeply lobed. The lobes are also divided and end in a sharp point. The flowers are in dense heads. These are at the ends of the branches. They are surrounded by rigid, spiny, leafy bracts. These are also divided. The 5 sepals are also spiny.
Life form annual
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a temperate plant. It grows in waste places. Tasmania Herbarium.
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Dry flats and fields in mixed woods below 800 metres in California.
Light 4-9
Soil humidity 1-6
Soil texture 1-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 6-9

Usage

Uses -
Edible seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Navarretia squarrosa unspecified picture

Distribution

Navarretia squarrosa world distribution map, present in Australia, Canada, New Zealand, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:689610-1
WFO ID wfo-0000380570
COL ID 6RTJD
BDTFX ID 51070
INPN ID 109462
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Navarretia squarrosa Navarretia pungens Navarretia pterosperma Gilia pungens Gilia squarrosa Navarretia eastwoodiae Hoitzia squarrosa Aegochloa pungens Navarretia squarrosa var. agrestis
WorldFloraDB 2024