Ajuga campylantha 1 near Lijiang, Yunnan 110707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 1 Hoces del Rio Duratón near Sepúlveda SP 140505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 2 Hoces del Rio Duratón near Sepúlveda SP 140505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 3 Hoces del Rio Duratón near Sepúlveda SP 140505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 4 Hoces del Rio Duratón near Sepúlveda SP 140505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 5 NW of Alanya, Turkey 090409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 6 NW of Alanya, Turkey 090409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 7 Bierge, N Spain 180527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 8 Bierge, N Spain 180527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 9 Bierge, N Spain 180527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys ssp chia 1 Pagontas, Samos, Greece 920505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys ssp chia 2 Pagontas, Samos, Greece 920505 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamepitys ssp chamaepitys 2 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis (cult, orig. Limhamn Sk) 150920 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 10 (cult) Brunnby Sk (orig Limhamn Sk) 130615 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 16 (cult, Limhamn Sk) Lund Sk 160911 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 5 Dolna Kula, Bulgaria 120509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 6 Dolna Kula, Bulgaria 120509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga laxmannii 1 Holomondas, Greece 050528 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga laxmannii 2 above Polygyros, Greece 050528 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 10 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 11 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 14 S of Tranerödsmossen, Kågeröd Sk 160518 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 6 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 7 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 8 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 9 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 1 Flinck's Garden, Bjuv Sk 070521 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 14 Lund Bot Garden 130527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 15 Lund Bot Garden 130527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 17 Glengariff Woods, West Cork, Ireland 170523 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 2 Flinck's Garden, Bjuv Sk 090506 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 3 Flinck's Garden, Bjuv Sk 090506 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 4 Allindelille Fredskov, Sjaelland DK 100622 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 5 Lund Bot Garden 130527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga campylantha 2 near Lijiang, Yunnan 110707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga campylantha 3 near Lijiang, Yunnan 110707 - Photo: (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 10 Bierge, N Spain 180527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamaepitys 11 Bierge, N Spain 180527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamepitys ssp chamaepitys 1 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamepitys ssp chamaepitys 3 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga chamepitys ssp chamaepitys 4 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 1 Bad Gastein, Austria 080630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 11 (cult) Brunnby Sk (orig Limhamn Sk) 110521 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 12 (cult) Brunnby Sk (orig Limhamn Sk) 110521 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 13 (cult, Limhamn Sk) Lund Sk 160911 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 14 (cult, Limhamn Sk) Lund Sk 160911 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 15 (cult, Limhamn Sk) Lund Sk 160911 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 17 (cult) Lund Sk 170518 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 2 Bad Gastein, Austria 080630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 3 Dolna Kula, Bulgaria 120509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 4 Dolna Kula, Bulgaria 120509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 7 (cult) Brunnby Sk (orig Limhamn Sk) 130615 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 8 (cult) Brunnby Sk (orig Limhamn Sk) 110521 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga genevensis 9 (cult) Brunnby Sk (orig Limhamn Sk) 130615 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 1 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 12 S of Tranerödsmossen, Kågeröd Sk 160518 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 13 S of Tranerödsmossen, Kågeröd Sk 160518 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 2 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 3 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 4 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga pyramidalis 5 Kungsmarken, Södra Sandby Sk 140516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 10 Lund Bot Garden 130527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 11 Lund Bot Garden 130527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 12 Lund Bot Garden 130527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 13 Lund Bot Garden 130527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 16 Glengariff Woods, West Cork, Ireland 170523 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 6 Lund Bot Garden 140430 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 7 Lund Bot Garden 140430 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 8 Lund Bot Garden 140430 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ajuga reptans 9 Lund Bot Garden 130527 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).