Crepis tectorum

 
Narrow-Leaved Hawk's-Beard

Whole Plant

Good Spirit Lake Provincial Park
18-June-2006

Note that the keys to the species in Budd's Flora and Flora of Alberta require:
bullet

stems solitary; NOT [stems several to many] 

In fact, occasionally several stems arise from the base of the plant, as they do in the specimens pictured here.

Note that the keys to the species in Budd's Flora and Flora of Alberta require:
bullet

basal rosettes absent when flowering; NOT [basal rosettes persistent]

In fact, sometimes some basal leaves will persist, although these are often brown or turning brown.

Note that the key to the genera in Budd's Flora requires:
bullet

involucre of one series of equal bracts; NOT [involucre usually of unequal bracts]

This is not true.  There is an outer series of unequal bracts, the longest of which are about 1/3 as long as an inner series of equal, elongate bracts.  The corresponding entry in Flora of Alberta is simply illogical:
bullet

involucre of 2 or more series; NOT [involucre uniseriate or biseriate] 

The rest of the answers to the key questions are listed below.

 
bullet

Tectorum:  Answers to key questions in Budd's Flora (BF) and Flora of Alberta (FOA) leading to this species.  
bullet

plants annual; NOT [plants perennial, with a taproot] (FOA) (BF)

bullet

stem with many stalkless leaves; NOT [stem with few and smaller stem leaves] ] (BF)

bullet

cauline leaves auriculate; NOT [cauline leaves, if present, not auriculate] (FOA)

bullet

achenes more than 2.5 mm long (FOA)

 

bullet

Crepis: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus.  Not all of the answers apply to all members of Crepis found in the Canadian prairies, but they all do apply to this species.
bullet

annuals or taprooted perennials; NOT [perennials with fibrous roots] (FOA)

bullet

juice milky; NOT watery (FOA, BF)

bullet

NOT [stem diffusely branched; leaves few, cauline, mostly linear or reduced to scales] (FOA)

bullet

leaves broader and leaf-like; NOT [leaves narrowly linear or scale-like] (BF)

bullet

plants with at least some cauline leaves, though they may be reduced to bracts; NOT [plants scapose, leaves all basal] (FOA)

bullet

plants with normal stem leaves; NOT [plants with leaves all basal or with a few reduced leaves on the stem] (BF)

bullet

stems leafy throughout or at least to mid-way up the stem; NOT [stems leafy at the base only, leaves mostly basal] (BF)

bullet

lower stem and leaves generally glabrous, sometimes puberulent, tomentose or hispid; NOT [lower stem and leaves generally long-hairy] (FOA)

bullet

heads few to many, rarely solitary; NOT [heads solitary] (FOA)

bullet

flowers all ligulate  (FOA, BF)

bullet

flowers all perfect (FOA)

bullet

flowers yellow (BF, FOA)

bullet

stamens united to form a tube around the pistil (BF)

bullet

achenes NOT flattened; NOT [achenes flattened, at least twice as wide as thick] (FOA, BF)

bullet

pappus well developed, at least in part of capillary bristles; NOT [pappus of minutes scales or none] (FOA, BF)

bullet

pappus simple, consisting of bristles only; NOT [pappus double, the outer ring consisting of 5 small scale-like appendages, the inner ring bristles] (BF),  NOT [pappus scale-like at the base, with plumose terminal bristles] (FOA)

bullet

pappus bristles simple; NOT [pappus bristles plumose (branched)] (BF, FOA)

bullet

pappus white; NOT [brownish or tawny] (BF)