A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 132

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 290

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 164

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 233

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 313

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Return type of CI_Session_files_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice

Filename: drivers/Session_files_driver.php

Line Number: 354

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 282

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 294

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 304

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 314

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 315

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 316

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 317

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 375

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: drivers/Session_files_driver.php

Line Number: 108

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 110

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Session cannot be started after headers have already been sent

Filename: Session/Session.php

Line Number: 143

Backtrace:

File: /hostdata/WebhostOrg02/rspg/public_html/61/application/controllers/Tree.php
Line: 7
Function: __construct

File: /hostdata/WebhostOrg02/rspg/public_html/61/index.php
Line: 315
Function: require_once

โครงการอนุรักษ์พันธุ์กรรมพืชฯ

ข้อมูลพันธุ์ไม้/การนำไปใช้ประโยชน์

รูปภาพ

แสดงรายละเอียดพันธุ์ไม้

กระทุ่มบก

Mitragyna javanica Koord. & Valeton

Mitragyna javanica Koord. & Valeton

RUBIACEAE

รายละเอียด

ไม้ยืนต้นขนาดกลางถึงขนาดใหญ่ สูง 16-27 เมตร เรือนยอดเป็นพุ่มกลม ลำต้นเปลาตรง มีการลิดกิ่งเองตามธรรมชาติ กิ่งตั้งฉากกับลำต้น เปลือกสีเทาปนน้ำตาลค่อนข้างเรียบ เนื้อไม้สีเหลืองอ่อน ใบ: ใบเดี่ยว เรียงตรงข้ามเป็นคู่ๆ กว้างประมาณ 5-12 เซนติเมตร ยาว 10-24 เซนติเมตร ปลายใบมนหรือเป็นติ่งแหลม โคนใบป้าน เนื้อใบค่อนข้างหนา หลังใบมีขนสากๆและมีสีเข้มกว่าท้องใบ ท้องใบมีขนนุ่มและจะหลุดร่วงไปเมื่อใบแก่ เส้นแขนงใบมี 7-14 คู่ เห็นชัดทั้งสองด้านดอก: ออกเป็นช่อกลมคล้ายลูกตุ้ม ดอกย่อยขนาดเล็ก สีเหลืองอ่อนหรือเหลืองแกมส้ม ผล: เป็นแท่ง ขนาดเล็ก ออกเบียดชิดกันอยู่บนฐานรองช่อดอก

ถิ่นที่อยู่

พบในภาคกลางของไทย

การนำไปใช้ประโยชน์

เนื้อไม้นำไปใช้ประโยชน์ในการสร้างบ้าน ทำเครื่องเรือนหรือใช้ในการทำเยื่อและกระดาษ