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Skunkweed - Navarretia squarrosa

[IFBC-E-flora] [E-flora]


(Above photographs) Navarretia intertexta (Moderate confidence) [Personal Note]


"Navarretia squarrosa is a ANNUAL growing to 0.3 m (1ft).
It is hardy to zone (UK) 7. It is in flower in August, and the seeds ripen in September. The flowers are hermaphrodite (have both male and female organs)Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil." [PFAF]

Edible Uses

Medicinal Uses


"Requires a very sunny position in a very well-drained dry to moist light or medium fertile soil[200]." [PFAF]


"Seed - sow early spring in situ[200]." [PFAF]


Habit: "Annual, generally prickly."
Stem: "prostrate to generally erect; branches ascending or spreading; glabrous to generally hairy, often glandular."
Leaf: "simple, alternate (lowermost opposite), entire to generally deeply pinnate-lobed."
Inflorescence: "generally head-like, bracts pinnate- to palmate-toothed or -lobed, spine-tipped (flower 1--2, pedicels elongate, bracts entire, not spine-tipped)."
Flower: "calyx lobes 4--5, equal, entire or toothed, or unequal, spine-tipped; corolla lobes 4--5; stigmas 2 or 3."
Fruit: "generally ovoid, chambers 1--3; dehiscing when wetted, seeds adherent to fruit and each other, or generally dehiscing at maturity, seeds free."
Seed: "1--many per fruit, brown, gelatinous when wet. Chromosomes: 2n=18."
Species In Genus: +- 40 species: western North America, Argentina, Chile. Etymology: (F.F. Navarrete, Spanish physician, ?--1742) Note: Revised taxonomy, too late for full treatment in TJM2, includes Navarretia linearifolia (Howell) L.A. Johnson subsp. linearifolia, a +- cryptic segregate of Navarretia sinistra, and Navarretia linearifolia subsp. pinnatisecta (H. Mason & A.D. Grant) L.A. Johnson [Navarretia sinistra subsp. pinnatisecta] (Johnson & Cairns-Heath 2010 Syst Bot 35:618--628); Navarretia paradoxinota and Navarretia paradoxiclara, both new to science, and Navarretia propinqua [Navarretia intertexta subsp. propinqua] (Johnson et al. 2013 Phytotaxa 91:27--38). Relative positions of flower parts are as pressed, unless stated otherwise." [Jepson]

Local Species

Navarretia intertexta - Needle-leaved navarretia

  • Status: Native [E-flora]2
  • General: Annual herb from a taproot; stems erect, simple to freely branched, nearly smooth to minutely hairy with longer hairs below the inflorescence, 5-25 cm tall. [E-flora]2
  • Leaves: Alternate, 1-3 cm long, hairless or white-hairy near the base, 1 to 2 times pinnately cleft, the axis narrow and the segments needle-like, the terminal segment elongate. [E-flora]2
  • Flowers: Inflorescences dense, leafy-bracted heads of several to many, unstalked flowers, terminating the stem and branches; corollas white to pale purple or pale blue, 4-11 mm long, the tube spreading to five egg-shaped lobes less than 2 mm long; stamens exserted from the tube; calyces white tufted-hairy at the mouth, 4-7 mm long, the teeth unequal, spine-tipped, the larger teeth sometimes 3-pronged. [E-flora]2
  • Fruits: Capsules, 2-chambered; seeds 3 to 5 per chamber, brown, pitted, becoming sticky when moistened. [E-flora]2
  • Habitat/Range: Moist meadows and vernal pools in the lowland and montane zones; rare on SC Vancouver Island, the lower Fraser Valley and the Thompson Plateau; E to SK and S to CO, AZ and CA. [E-flora]2

Use of Related Sp.


The information presented on this site is provided for educational purposes. Self diagnosis and treatment, without due diligence, could be harmful and is not encouraged. Some information & images may be copyright. Every effort has been made to present the information in the spirit with which it was originally presented. Some data has been omitted for legal and/or practical consideration. There is some data not covered in the scope of this project, including, but not limited to, cell culture and large-dose animal studies. I have made comparisons and links between related species which may later prove erroneous. I have not verified the information for accuracy and I accept no responsibility for its authenticity. Many of the plants presented are poisonous, have poisonous properties, or could cause illness through misuse, allergic reaction, drug interactions and environmental contaminants. Please use caution and mindfulness when harvesting plants for any use.

Page last modified on 13-02-2017