Hackelia
Hackelia is a genus of plants in the borage family, Boraginaceae. It includes 54 species found in North America, western South America, temperate Eurasia, and Australia. 12 species are native to California.
The genus was named after Josef Hackel, a Czech botanist. The common name, stickseed, refers to the tendency of the barbed nutlets to stick to animal fur.
Species
54 species are currently accepted:Hackelia amethystina - amethyst stickseed – CaliforniaHackelia andicola – PeruHackelia bella - greater showy stickseed – northwestern California and southwestern Oregon Hackelia besseyi - Bessey's stickseed – Arizona, Colorado, New Mexico and TexasHackelia bhutanica – eastern Nepal to northwestern Arunachal PradeshHackelia brachytuba – Nepal to central ChinaHackelia brevicula - Poison Canyon stickseed – eastern CaliforniaHackelia californica - California stickseed – northern California and west-central Oregon Hackelia ciliata - British Columbia, Idaho, and WashingtonHackelia cinerea - gray stickseed – Washington, Idaho, and MontanaHackelia cronquistii - Cronquist's stickseed – Oregon and IdahoHackelia cusickii - Cusick's stickseed – Oregon, northern California, and northwestern NevadaHackelia davisii – IdahoHackelia deflexa – northern Eurasia and northern North AmericaHackelia difformis – south-central China and TibetHackelia diffusa - Spreading stickseed – British Columbia, Washington, OregonHackelia floribunda - manyflower stickseed – western and central Canada and United StatesHackelia gracilenta – ColoradoHackelia heliocarpa – Mexico Hackelia hendersonii – Washington, Oregon, and MontanaHackelia hintoniorum – Mexico Hackelia hirsuta – New MexicoHackelia hispida - showy stickseed – Washington, Oregon, IdahoHackelia ibapensis – UtahHackelia latifolia – eastern Australia and TasmaniaHackelia leonotis – northeastern and central MexicoHackelia macrophylla – northern Pakistan and western HimalayaHackelia meeboldii – western HimalayaHackelia mexicana – Mexico to Venezuela and PeruHackelia micrantha - Jessica sticktight – western Canada and United StatesHackelia mundula - pink stickseed – southwestern Oregon to central CaliforniaHackelia murgabica – TajikistanHackelia nervosa - Sierra stickseed – California and northwestern NevadaHackelia obtusifolia – BhutanHackelia ophiobia – southeastern Oregon, southwestern Idaho, and northern NevadaHackelia parviflora – Peru Hackelia patens - spotted stickseed – west-central United StatesHackelia pinetorum – Arizona, New Mexico, Texas, and northern MexicoHackelia popovii – TajikistanHackelia rattanii – Mexico Hackelia revoluta – Colombia to northwestern ArgentinaHackelia sessilifructa – XinjiangHackelia setosa - bristly stickseed – northern California and southwestern OregonHackelia sharsmithii - Sharsmith's stickseed – central California and central NevadaHackelia skutchii – Guatemala and Costa RicaHackelia stewartii – northern Pakistan and western HimalayaHackelia stricta – southwestern Mexico to VeracruzHackelia suaveolens – eastern and southern Australia and TasmaniaHackelia taylorii – WashingtonHackelia uncinata – northeastern Pakistan to Himalaya and southern ChinaHackelia ursina – southeastern Arizona, southwestern New Mexico, and northern Mexico Hackelia velutina - velvet stickseed – north-central and central California and northwestern NevadaHackelia venusta - lesser showy stickseed – central WashingtonHackelia virginiana - beggar's lice – central and eastern United States and eastern Canada