Palouse Prairie Foundation plant database (under development)
Genus species:      Common name:     Match: Full Partial
Plant Species: Hieracium cynoglossoides, houndstooth hawkweed


Kingdom: Plantae
Phylum: Magnoliophyta -- flowering plants
Class: Magnoliopsida -- dicots
Order: Asterales
Family: Asteraceae (Compositae) -- sunflower
Genus: Hieracium
Species: cynoglossoides
Variety:
Common Name: houndstooth hawkweed, houndstongue hawkweed
Species Code: HICY
Origin: Native to dry to mesic open grasslands and open forests of western North America from British Columbia to Oregon and east to Montana and Wyoming.
Rare: no


Form: forb, perennial, erect, densely coarse white pubescent throughout, sometimes also finely stellate, 30-100 cm tall, sap milky. Differs from H. albertinum primarily on being less setose and having an obviously glandular involucre.
Duration: perennial
Longevity:
Habitat Type: prairie
Wetland Indicator Status: not listed


Leaves: short petiolate, elongated, margins entire; lower cauline leaves 10-25 cm long and 1-3 cm wide, crowded; becoming reduced and more distant upward.
Mature height: 12-40 inches
Flowers: few to numerous, involucre 7-12 cm high, with numerous short, black, gland-tipped bristles and often some longer setae; ligulate flowers perfect, yellow; disc flowers lacking.
Flower color: yellow
Bloom: June, July
Bloom starts on: mid June
Bloom ends on: late July
Fruit: achene, 3-3.5 mm long, cylindric, reddish brown; pappus whitish to tawny.
Vegetation type:


Characteristics:
Reproduces sexually by seed.
Differs from H. albertinum primarily on being less setose and having an obviously glandular involucre. The two species grade into one another and into H. scouleri and all three may be considered a single species in some treatments.
Perennating organ is a caudex.
Flowers are all ligulate and perfect.
Fruit is an achene.
n=9 (University of British Columbia 2003).
Species which reproduce sexually are diploids (2n=18), while species which are apomictic are triploids (2n=27) (Flora of North America Editorial Committee 1993+).
Apomixis is know in the genus.
Seeds are windborne.
A minor value forage of Rocky Mountain elk in spring and summer (Kufeld 1979).
Comments:


Sun requirement: full sun
Soil moisture: xeric to mesic
Precipitation: 14-30 inches for H. scouleri (USDA NRCS PLANTS Database 2009).
Fire:
Hazards:


Sowing time: not known, probably best sown in the fall
Transplant time: spring
Stratification: none needed for H. albertinum
Seed yield: medium
Seed harvest: medium difficult
Seed first harvest: second season
Seed cleaning: medium difficulty
Planting duration: long
Seed insect problem:
Seed shatter: high
Seed size: medium
Seed harvest date: July
Seed comments: Plants flower and ripen seed indeterminately. Seeds are windborne and shatter readily.


Herbaria: Specimen data and digital resources from The Consortium of Pacific Northwest Herbaria
Key words: native perennial upland forb
Alternate Genus:
Alternate Species: scouleri
Alternate Variety:


Propagation:
No information is available, but seed germination is probably similar to H. albertinum.
See 1 protocol in the Native Plant Network for H. albertinum Pullman WA Plant Materials Center
Reproduces sexually by seed.


Notes:


References:
Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 7+ vols. New York and Oxford. Oxford University Press. Online at http://www.fna.org/FNA/

Kufeld, Roland. 1973. Foods Eaten by the Rocky Mountain Elk. Journal of Range Management 26:106-113.

University of British Columbia. 2003. British Columbia Flora. University of British Columbia Botanical Garden and Centre for Plant Research. Accessed 9/1/09 online at http://www.bcflora.org/

USDA NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 27 September 2009). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.



Links:

Plant Profile from the USDA PLANTS Database
Species description from Flora of North America
Species information from the University of Washington Herbarium