Hirschfeldia incana (USA)

Hirschfeldia incana (L.) Lagr.-Foss., Fl. Tarn Garonne 19 1847. (Syn: Brassica adpressa (Moench) Boiss. [Illegitimate]; Brassica geniculata (Desf.) Ball; Brassica geniculata (Desf.) Benth.; Brassica heterophylla (Lag.) Boiss. ex Nyman; Brassica incana (L.) Maly [Illegitimate]; Brassica incana (L.) Meigen; Brassica nervosa Ball; Brassica nigra var. incana (L.) Dosch & J. Scriba; Brassica sylvestris subsp. incana (Meigen) Onno; Cordylocarpus pubescens Sm.; Crucifera hirschfeldia E.H.L.Krause; Erucaria hyrcanica DC.; Erucaria persica Gorter ex Ledeb.; Erucastrum heterophyllum (Lag.) Nyman; Erucastrum incanum (L.) W.D.J.Koch .; Hirschfeldia adpressa Moench .; Hirschfeldia consobrina Pomel (Unresolved); Hirschfeldia consobuna Pomel (Unresolved); Hirschfeldia geniculata (Desf.) Pomel; Hirschfeldia heterophylla (Lag.) Amo; Hirschfeldia incana subsp. adpressa (Moench) Maire ........; Myagrum pinnatum Sol. (Unresolved); Raphanus erucaria J.F.Gmel. (Unresolved); Raphanus incanus (L.) Crantz; Rapistrum macedonicum Formánek; Sinapis adpressa (Moench) Schloss. & Vuk.; Sinapis geniculata Desf.; Sinapis heterophylla Lag.; Sinapis incana L.; Sinapis paniculata Boiss. (Unresolved); Sinapis taurica M.Bieb.; Sisymbrium incanum (L.) Prantl; Strangalis adpressa (Moench) Dulac);
 
  
 
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Brassicaceae Week: Hirschfeldia incana from California: Hirschfeldia incana (L.) Lagrèze-Fossat, Fl. Tarn Garonne. 19. 1847.
Common names: Hairy brassica, hoary mustard
Annual herb similar in appearance to Sisymbrium officinale with similar appressed fruits but differing in leaves without hastate terminal lobe, larger flowers with 5-10 mm long petals which are 3-5 mm broad, 7-15 mm long fruit with two segments, lower bearing 8-20 seeds and terminal swollen segment bearing 1-2 seeds.
Photographed from Sunnyvale, California.
  
 
 
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